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mailcow / mailcow-dockerized

mailcow: dockerized - 🐮 + 🐋 = 💕
https://mailcow.email
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Blank /debug page after upgrade to latest version #5928

Open delendum opened 4 days ago

delendum commented 4 days ago

Contribution guidelines

I've found a bug and checked that ...

Description

After upgrading from 2024-04 to 2024-06a, the /debug page is now blank. It appears to hang for a few seconds before returning a blank page.

Logs:

While waiting for /debug to load, changing to /admin sometimes catches a glimpse of this error:

An unknown error occured: TypeError Object( [message:protected] => Cannot access offset of type string on string [string:Error:private] => [code:protected] => 0 [file:protected] => /web/debug.php [line:protected] => 32 [trace:Error:private] => Array ( ) [previous:Error:private] => )

Logs are otherwise uneventful:
php-fpm-mailcow-1    | 172.22.1.8 -  29/Jun/2024:21:07:56 +1200 "GET /debug.php" 200
nginx-mailcow-1      | 192.168.1.5 - - [29/Jun/2024:21:08:07 +1200] "GET /debug HTTP/1.1" 200 31 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0"

Steps to reproduce:

1. Upgrade to 2024-06a
2. Log in with the admin username
3. Blank /debug page is returned

I have tried looking after some of the things that had caused similar issues in the past:
1. My TZ is: TZ=Pacific/Auckland
2. The cache folder exists:
drwxr-xr-x 22   82   82  4096 Jun 29 21:07 cache

Which branch are you using?

master

Which architecture are you using?

x86

Operating System:

Debian 12

Server/VM specifications:

VM: 32GB RAM, 4 Cores

Is Apparmor, SELinux or similar active?

Yes

Virtualization technology:

Virtualbox

Docker version:

27.0.2, build 912c1dd

docker-compose version or docker compose version:

v2.28.1

mailcow version:

2024-06a

Reverse proxy:

HAProxy

Logs of git diff:

diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 6a87f2ec..c9ede2d1 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -173,3 +173,33 @@ parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks

 # DO NOT EDIT ANYTHING BELOW #
 # Overrides #
+
+postscreen_dnsbl_sites = wl.mailspike.net=127.0.0.[18;19;20]*-2
+  hostkarma.junkemailfilter.com=127.0.0.1*-2
+  list.dnswl.org=127.0.[0..255].0*-2
+  list.dnswl.org=127.0.[0..255].1*-4
+  list.dnswl.org=127.0.[0..255].2*-6
+  list.dnswl.org=127.0.[0..255].3*-8
+  ix.dnsbl.manitu.net*2
+  bl.spamcop.net*2
+  bl.suomispam.net*2
+  hostkarma.junkemailfilter.com=127.0.0.2*3
+  hostkarma.junkemailfilter.com=127.0.0.4*2
+  hostkarma.junkemailfilter.com=127.0.1.2*1
+  backscatter.spameatingmonkey.net*2
+  bl.ipv6.spameatingmonkey.net*2
+  bl.spameatingmonkey.net*2
+  b.barracudacentral.org=127.0.0.2*7
+  bl.mailspike.net=127.0.0.2*5
+  bl.mailspike.net=127.0.0.[10;11;12]*4
+  dnsbl.sorbs.net=127.0.0.10*8
+  dnsbl.sorbs.net=127.0.0.5*6
+  dnsbl.sorbs.net=127.0.0.7*3
+  dnsbl.sorbs.net=127.0.0.8*2
+  dnsbl.sorbs.net=127.0.0.6*2
+  dnsbl.sorbs.net=127.0.0.9*2
+
+
+# User Overrides
+myhostname = mail.<redacted>.com
+
diff --git a/docker-compose.yml b/docker-compose.yml
index b0f50dd6..563144af 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -611,36 +611,6 @@ services:
           aliases:
             - ofelia

-    ipv6nat-mailcow:
-      depends_on:
-        - unbound-mailcow
-        - mysql-mailcow
-        - redis-mailcow
-        - clamd-mailcow
-        - rspamd-mailcow
-        - php-fpm-mailcow
-        - sogo-mailcow
-        - dovecot-mailcow
-        - postfix-mailcow
-        - memcached-mailcow
-        - nginx-mailcow
-        - acme-mailcow
-        - netfilter-mailcow
-        - watchdog-mailcow
-        - dockerapi-mailcow
-        - solr-mailcow
-      environment:
-        - TZ=${TZ}
-      image: robbertkl/ipv6nat
-      security_opt:
-        - label=disable
-      restart: always
-      privileged: true
-      network_mode: "host"
-      volumes:
-        - /var/run/docker.sock:/var/run/docker.sock:ro
-        - /lib/modules:/lib/modules:ro
-
 networks:
   mailcow-network:
     driver: bridge

Logs of iptables -L -vn:

Chain INPUT (policy DROP 70 packets, 4086 bytes)
 pkts bytes target     prot opt in     out     source               destination         
19126 4188K MAILCOW    0    --  *      *       0.0.0.0/0            0.0.0.0/0            /* mailcow */
27978 6512K ufw-before-logging-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
27978 6512K ufw-before-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
  278 33518 ufw-after-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
   70  4086 ufw-after-logging-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
   70  4086 ufw-reject-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
   70  4086 ufw-track-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
 148K   35M MAILCOW    0    --  *      *       0.0.0.0/0            0.0.0.0/0            /* mailcow */
 147K   35M DOCKER-USER  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
 147K   35M DOCKER-ISOLATION-STAGE-1  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
 110K   31M ACCEPT     0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
13094  832K DOCKER     0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0           
23785 2964K ACCEPT     0    --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0           
10343  667K ACCEPT     0    --  br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  *      docker0  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
    0     0 DOCKER     0    --  *      docker0  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     0    --  docker0 docker0  0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-before-logging-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-before-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-after-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-after-logging-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-reject-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ufw-track-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain OUTPUT (policy ACCEPT 36 packets, 1704 bytes)
 pkts bytes target     prot opt in     out     source               destination         
28703   15M ufw-before-logging-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
28703   15M ufw-before-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
  213 12759 ufw-after-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
  213 12759 ufw-after-logging-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
  213 12759 ufw-reject-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
  213 12759 ufw-track-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.249         tcp dpt:6379
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.5           tcp dpt:8983
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.6           tcp dpt:3306
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:110
   22  1296 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:143
    5   386 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:993
   14   836 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:995
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:4190
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:12345
 2599  156K ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:80
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:443
   39  2016 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:25
   67  3984 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:465
    5   300 ACCEPT     6    --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:587

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
 pkts bytes target     prot opt in     out     source               destination         
23785 2964K DOCKER-ISOLATION-STAGE-2  0    --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 DOCKER-ISOLATION-STAGE-2  0    --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0           
 191K   55M RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain DOCKER-ISOLATION-STAGE-2 (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0           
    0     0 DROP       0    --  *      docker0  0.0.0.0/0            0.0.0.0/0           
30966 7666K RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain DOCKER-USER (1 references)
 pkts bytes target     prot opt in     out     source               destination         
 191K   55M RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain MAILCOW (2 references)
 pkts bytes target     prot opt in     out     source               destination         
   93  7483 DROP       0    --  *      *       194.169.175.66       0.0.0.0/0           
  185 11040 DROP       0    --  *      *       194.169.175.20       0.0.0.0/0           
    0     0 DROP       6    --  !br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0            /* mailcow isolation */

Chain ufw-after-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-after-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ufw-skip-to-policy-input  17   --  *      *       0.0.0.0/0            0.0.0.0/0            udp dpt:137
    0     0 ufw-skip-to-policy-input  17   --  *      *       0.0.0.0/0            0.0.0.0/0            udp dpt:138
    0     0 ufw-skip-to-policy-input  6    --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:139
    0     0 ufw-skip-to-policy-input  6    --  *      *       0.0.0.0/0            0.0.0.0/0            tcp dpt:445
    0     0 ufw-skip-to-policy-input  17   --  *      *       0.0.0.0/0            0.0.0.0/0            udp dpt:67
    0     0 ufw-skip-to-policy-input  17   --  *      *       0.0.0.0/0            0.0.0.0/0            udp dpt:68
  208 29432 ufw-skip-to-policy-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type BROADCAST

Chain ufw-after-logging-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   23  1380 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-after-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-before-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 3
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 11
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 12
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 8
    0     0 ufw-user-forward  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-before-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   23  2335 ACCEPT     0    --  lo     *       0.0.0.0/0            0.0.0.0/0           
27648 6474K ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
    4   160 ufw-logging-deny  0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate INVALID
    4   160 DROP       0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate INVALID
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 3
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 11
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 12
    0     0 ACCEPT     1    --  *      *       0.0.0.0/0            0.0.0.0/0            icmptype 8
    0     0 ACCEPT     17   --  *      *       0.0.0.0/0            0.0.0.0/0            udp spt:67 dpt:68
  303 35018 ufw-not-local  0    --  *      *       0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     17   --  *      *       0.0.0.0/0            224.0.0.251          udp dpt:5353
    0     0 ACCEPT     17   --  *      *       0.0.0.0/0            239.255.255.250      udp dpt:1900
  303 35018 ufw-user-input  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-before-logging-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-before-logging-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-before-logging-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-before-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   23  2335 ACCEPT     0    --  *      lo      0.0.0.0/0            0.0.0.0/0           
28467   14M ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
  213 12759 ufw-user-output  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-logging-allow (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW ALLOW] "

Chain ufw-logging-deny (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    4   160 RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate INVALID limit: avg 3/min burst 10
    0     0 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-not-local (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   86  5136 RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type LOCAL
    9   450 RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type MULTICAST
  208 29432 RETURN     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type BROADCAST
    0     0 ufw-logging-deny  0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10
    0     0 DROP       0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-reject-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-reject-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-reject-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-skip-to-policy-forward (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-skip-to-policy-input (7 references)
 pkts bytes target     prot opt in     out     source               destination         
  208 29432 DROP       0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-skip-to-policy-output (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-track-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-track-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-track-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         
  134  8048 ACCEPT     6    --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate NEW
   43  3007 ACCEPT     17   --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate NEW

Chain ufw-user-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-user-limit (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 5 LOG flags 0 level 4 prefix "[UFW LIMIT BLOCK] "
    0     0 REJECT     0    --  *      *       0.0.0.0/0            0.0.0.0/0            reject-with icmp-port-unreachable

Chain ufw-user-limit-accept (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    4   240 ACCEPT     0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain ufw-user-logging-forward (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-user-logging-input (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-user-logging-output (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw-user-output (1 references)
 pkts bytes target     prot opt in     out     source               destination

Logs of ip6tables -L -vn:

Chain INPUT (policy DROP 111 packets, 7770 bytes)
 pkts bytes target     prot opt in     out     source               destination         
 1072  997K MAILCOW    0    --  *      *       ::/0                 ::/0                 /* mailcow */
 1474 1241K ufw6-before-logging-input  0    --  *      *       ::/0                 ::/0                
 1474 1241K ufw6-before-input  0    --  *      *       ::/0                 ::/0                
  111  7770 ufw6-after-input  0    --  *      *       ::/0                 ::/0                
  111  7770 ufw6-after-logging-input  0    --  *      *       ::/0                 ::/0                
  111  7770 ufw6-reject-input  0    --  *      *       ::/0                 ::/0                
  111  7770 ufw6-track-input  0    --  *      *       ::/0                 ::/0                

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
25125   30M MAILCOW    0    --  *      *       ::/0                 ::/0                 /* mailcow */
25152   30M DOCKER-USER  0    --  *      *       ::/0                 ::/0                
25152   30M DOCKER-ISOLATION-STAGE-1  0    --  *      *       ::/0                 ::/0                
18184   30M ACCEPT     0    --  *      br-mailcow  ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
 6968  477K DOCKER     0    --  *      br-mailcow  ::/0                 ::/0                
    0     0 ACCEPT     0    --  br-mailcow !br-mailcow  ::/0                 ::/0                
 6968  477K ACCEPT     0    --  br-mailcow br-mailcow  ::/0                 ::/0                
    0     0 ACCEPT     0    --  *      docker0  ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
    0     0 DOCKER     0    --  *      docker0  ::/0                 ::/0                
    0     0 ACCEPT     0    --  docker0 !docker0  ::/0                 ::/0                
    0     0 ACCEPT     0    --  docker0 docker0  ::/0                 ::/0                
    0     0 ufw6-before-logging-forward  0    --  *      *       ::/0                 ::/0                
    0     0 ufw6-before-forward  0    --  *      *       ::/0                 ::/0                
    0     0 ufw6-after-forward  0    --  *      *       ::/0                 ::/0                
    0     0 ufw6-after-logging-forward  0    --  *      *       ::/0                 ::/0                
    0     0 ufw6-reject-forward  0    --  *      *       ::/0                 ::/0                
    0     0 ufw6-track-forward  0    --  *      *       ::/0                 ::/0                

Chain OUTPUT (policy ACCEPT 78 packets, 7768 bytes)
 pkts bytes target     prot opt in     out     source               destination         
 2903  896K ufw6-before-logging-output  0    --  *      *       ::/0                 ::/0                
 2903  896K ufw6-before-output  0    --  *      *       ::/0                 ::/0                
  210 17218 ufw6-after-output  0    --  *      *       ::/0                 ::/0                
  210 17218 ufw6-after-logging-output  0    --  *      *       ::/0                 ::/0                
  210 17218 ufw6-reject-output  0    --  *      *       ::/0                 ::/0                
  210 17218 ufw6-track-output  0    --  *      *       ::/0                 ::/0                

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:110
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:143
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:993
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:995
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:4190
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::c  tcp dpt:80
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::c  tcp dpt:443
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::f  tcp dpt:25
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::f  tcp dpt:465
    0     0 ACCEPT     6    --  !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::f  tcp dpt:587

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DOCKER-ISOLATION-STAGE-2  0    --  br-mailcow !br-mailcow  ::/0                 ::/0                
    0     0 DOCKER-ISOLATION-STAGE-2  0    --  docker0 !docker0  ::/0                 ::/0                
35619   41M RETURN     0    --  *      *       ::/0                 ::/0                

Chain DOCKER-ISOLATION-STAGE-2 (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      br-mailcow  ::/0                 ::/0                
    0     0 DROP       0    --  *      docker0  ::/0                 ::/0                
    0     0 RETURN     0    --  *      *       ::/0                 ::/0                

Chain DOCKER-USER (1 references)
 pkts bytes target     prot opt in     out     source               destination         
35619   41M RETURN     0    --  *      *       ::/0                 ::/0                

Chain MAILCOW (2 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-after-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-after-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ufw6-skip-to-policy-input  17   --  *      *       ::/0                 ::/0                 udp dpt:137
    0     0 ufw6-skip-to-policy-input  17   --  *      *       ::/0                 ::/0                 udp dpt:138
    0     0 ufw6-skip-to-policy-input  6    --  *      *       ::/0                 ::/0                 tcp dpt:139
    0     0 ufw6-skip-to-policy-input  6    --  *      *       ::/0                 ::/0                 tcp dpt:445
    0     0 ufw6-skip-to-policy-input  17   --  *      *       ::/0                 ::/0                 udp dpt:546
    0     0 ufw6-skip-to-policy-input  17   --  *      *       ::/0                 ::/0                 udp dpt:547

Chain ufw6-after-logging-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       ::/0                 ::/0                 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw6-after-logging-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   22  1540 LOG        0    --  *      *       ::/0                 ::/0                 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw6-after-logging-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-after-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-before-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      *       ::/0                 ::/0                 rt type:0
    0     0 ACCEPT     0    --  *      *       ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 1
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 2
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 3
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 4
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 128
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 129
    0     0 ufw6-user-forward  0    --  *      *       ::/0                 ::/0                

Chain ufw6-before-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         
  305  595K ACCEPT     0    --  lo     *       ::/0                 ::/0                
    0     0 DROP       0    --  *      *       ::/0                 ::/0                 rt type:0
  191  583K ACCEPT     0    --  *      *       ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 129
    0     0 ufw6-logging-deny  0    --  *      *       ::/0                 ::/0                 ctstate INVALID
    0     0 DROP       0    --  *      *       ::/0                 ::/0                 ctstate INVALID
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 1
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 2
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 3
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 4
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 128
  355 19880 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 133 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 134 HL match HL == 255
  252 18144 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 135 HL match HL == 255
  260 16656 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 136 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 141 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 142 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 130
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 131
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 132
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 143
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 148 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 149 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 151 HL match HL == 1
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 152 HL match HL == 1
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 153 HL match HL == 1
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 144
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 145
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 146
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 147
    0     0 ACCEPT     17   --  *      *       fe80::/10            fe80::/10            udp spt:547 dpt:546
    0     0 ACCEPT     17   --  *      *       ::/0                 ff02::fb             udp dpt:5353
    0     0 ACCEPT     17   --  *      *       ::/0                 ff02::f              udp dpt:1900
  111  7770 ufw6-user-input  0    --  *      *       ::/0                 ::/0                

Chain ufw6-before-logging-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-before-logging-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-before-logging-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-before-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         
  305  595K ACCEPT     0    --  *      lo      ::/0                 ::/0                
    0     0 DROP       0    --  *      *       ::/0                 ::/0                 rt type:0
 1665  227K ACCEPT     0    --  *      *       ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 1
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 2
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 3
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 4
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 128
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 129
    1    56 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 133 HL match HL == 255
  252 16176 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 136 HL match HL == 255
  299 21528 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 135 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 134 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 141 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 142 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 130
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 131
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 132
  171 18556 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 143
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 148 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       ::/0                 ::/0                 ipv6-icmptype 149 HL match HL == 255
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 151 HL match HL == 1
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 152 HL match HL == 1
    0     0 ACCEPT     58   --  *      *       fe80::/10            ::/0                 ipv6-icmptype 153 HL match HL == 1
  210 17218 ufw6-user-output  0    --  *      *       ::/0                 ::/0                

Chain ufw6-logging-allow (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       ::/0                 ::/0                 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW ALLOW] "

Chain ufw6-logging-deny (1 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 RETURN     0    --  *      *       ::/0                 ::/0                 ctstate INVALID limit: avg 3/min burst 10
    0     0 LOG        0    --  *      *       ::/0                 ::/0                 limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw6-reject-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-reject-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-reject-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-skip-to-policy-forward (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      *       ::/0                 ::/0                

Chain ufw6-skip-to-policy-input (6 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DROP       0    --  *      *       ::/0                 ::/0                

Chain ufw6-skip-to-policy-output (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     0    --  *      *       ::/0                 ::/0                

Chain ufw6-track-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-track-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-track-output (1 references)
 pkts bytes target     prot opt in     out     source               destination         
   21  1680 ACCEPT     6    --  *      *       ::/0                 ::/0                 ctstate NEW
  111  7770 ACCEPT     17   --  *      *       ::/0                 ::/0                 ctstate NEW

Chain ufw6-user-forward (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-user-input (1 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-user-limit (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 LOG        0    --  *      *       ::/0                 ::/0                 limit: avg 3/min burst 5 LOG flags 0 level 4 prefix "[UFW LIMIT BLOCK] "
    0     0 REJECT     0    --  *      *       ::/0                 ::/0                 reject-with icmp6-port-unreachable

Chain ufw6-user-limit-accept (0 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 ACCEPT     0    --  *      *       ::/0                 ::/0                

Chain ufw6-user-logging-forward (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-user-logging-input (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-user-logging-output (0 references)
 pkts bytes target     prot opt in     out     source               destination         

Chain ufw6-user-output (1 references)
 pkts bytes target     prot opt in     out     source               destination

Logs of iptables -L -vn -t nat:

Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
 4902  294K DOCKER     0    --  *      *       0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type LOCAL

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DOCKER     0    --  *      *       0.0.0.0/0           !127.0.0.0/8          ADDRTYPE match dst-type LOCAL

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
15385 1158K MASQUERADE  0    --  *      !br-mailcow  172.22.1.0/24        0.0.0.0/0           
    0     0 MASQUERADE  0    --  *      !docker0  172.17.0.0/16        0.0.0.0/0           
    0     0 MASQUERADE  6    --  *      *       172.22.1.249         172.22.1.249         tcp dpt:6379
    0     0 MASQUERADE  6    --  *      *       172.22.1.5           172.22.1.5           tcp dpt:8983
    0     0 MASQUERADE  6    --  *      *       172.22.1.6           172.22.1.6           tcp dpt:3306
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:110
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:143
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:993
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:995
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:4190
    0     0 MASQUERADE  6    --  *      *       172.22.1.250         172.22.1.250         tcp dpt:12345
    0     0 MASQUERADE  6    --  *      *       172.22.1.8           172.22.1.8           tcp dpt:80
    0     0 MASQUERADE  6    --  *      *       172.22.1.8           172.22.1.8           tcp dpt:443
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:25
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:465
    0     0 MASQUERADE  6    --  *      *       172.22.1.253         172.22.1.253         tcp dpt:587

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 RETURN     0    --  br-mailcow *       0.0.0.0/0            0.0.0.0/0           
    0     0 RETURN     0    --  docker0 *       0.0.0.0/0            0.0.0.0/0           
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:7654 to:172.22.1.249:6379
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:18983 to:172.22.1.5:8983
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:13306 to:172.22.1.6:3306
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:110 to:172.22.1.250:110
   22  1296 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:143 to:172.22.1.250:143
    5   386 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:993 to:172.22.1.250:993
   14   836 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:995 to:172.22.1.250:995
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:4190 to:172.22.1.250:4190
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:19991 to:172.22.1.250:12345
 2669  160K DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:80 to:172.22.1.8:80
    0     0 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:443 to:172.22.1.8:443
   40  2068 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:25 to:172.22.1.253:25
 1185 71064 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:465 to:172.22.1.253:465
    6   360 DNAT       6    --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:587 to:172.22.1.253:587

Logs of ip6tables -L -vn -t nat:

Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DOCKER     0    --  *      *       ::/0                 ::/0                 ADDRTYPE match dst-type LOCAL

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 DOCKER     0    --  *      *       ::/0                !::1                  ADDRTYPE match dst-type LOCAL

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 MASQUERADE  0    --  *      !br-mailcow  fd4d:6169:6c63:6f77::/64  ::/0                
    0     0 MASQUERADE  0    --  *      !docker0  fd00:dead:beef:c0::/80  ::/0                
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:110
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:143
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:993
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:995
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:4190
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::c  fd4d:6169:6c63:6f77::c  tcp dpt:80
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::c  fd4d:6169:6c63:6f77::c  tcp dpt:443
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::f  fd4d:6169:6c63:6f77::f  tcp dpt:25
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::f  fd4d:6169:6c63:6f77::f  tcp dpt:465
    0     0 MASQUERADE  6    --  *      *       fd4d:6169:6c63:6f77::f  fd4d:6169:6c63:6f77::f  tcp dpt:587

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 RETURN     0    --  br-mailcow *       ::/0                 ::/0                
    0     0 RETURN     0    --  docker0 *       ::/0                 ::/0                
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:110 to:[fd4d:6169:6c63:6f77::b]:110
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:143 to:[fd4d:6169:6c63:6f77::b]:143
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:993 to:[fd4d:6169:6c63:6f77::b]:993
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:995 to:[fd4d:6169:6c63:6f77::b]:995
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:4190 to:[fd4d:6169:6c63:6f77::b]:4190
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:80 to:[fd4d:6169:6c63:6f77::c]:80
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:443 to:[fd4d:6169:6c63:6f77::c]:443
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:25 to:[fd4d:6169:6c63:6f77::f]:25
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:465 to:[fd4d:6169:6c63:6f77::f]:465
    0     0 DNAT       6    --  !br-mailcow *       ::/0                 ::/0                 tcp dpt:587 to:[fd4d:6169:6c63:6f77::f]:587

DNS check:

172.64.155.249
104.18.32.7
lukebsa commented 4 days ago

I am having this issue too

Flinkpfote commented 3 days ago

I have the same problem. If I go straight to /admin, I get a red message saying "array" but I haven't changed/saved anything (Only for the first load). But all the pages work, except /debug. /SoGo/ works all the time. A lot of things are loaded for a very long time.

I dont have ARM but the newest version of Docker (Docker version 27.0.2, build 912c1dd)

https://github.com/mailcow/mailcow-dockerized/issues/5927

Aterfax commented 3 days ago

Also seeing this. (ARM 64 docker.)

delendum commented 3 days ago

Getting some inspiration from https://github.com/mailcow/mailcow-dockerized/issues/5924

I have a search domain specified in /etc/resolv.conf - commenting it out and restarting the docker containers fixes the issue, the /debug page now loads normally.

If you're experiencing this issue then please try this as a temp fix, hopefully a more permanent solution can be found.

obakuhl commented 2 days ago

I had the same issue, but commenting out the search domain solved the problem. Thx @delendum

Magelo commented 2 days ago

In my resolv.conf I have :

domain somedomain.com search somedomain.com nameserver mydnsip

Removing both domain and search lines resolved the problem for me. Removing only search was doing nothing.

I don't know how, but when I reboot, the two lines are back. So I used :

chattr +i /etc/resolv.conf

It's now working, but those lines were there before with no issue. The last update broke something for sure.

xxtensazenxx commented 1 day ago

Having this same issue as well. I'm on a VM so should I just roll back the update and wait until this is fixed?

squal0nero commented 1 day ago

I have the same problem with the Debian 12. Deleting the search entry in resolv.conf works as a workaround.

pedrostefanogv commented 10 hours ago

I have the same problem with the Debian 12. Deleting the search entry in resolv.conf works as a workaround.

I tried it here and it didn't work. I'm using ARM on Oracle Cloud

camodebw commented 6 hours ago

I had the same issue after update from 2024-04 to 2024-06a, reverted back to 2024-04 until a fix is available.

Debian Buster with Kernel: 4.19.0-26-amd64

pedrostefanogv commented 1 hour ago

I had the same issue after update from 2024-04 to 2024-06a, reverted back to 2024-04 until a fix is available.

Debian Buster with Kernel: 4.19.0-26-amd64

Is there a step-by-step guide explaining how to revert the update?

camodebw commented 1 hour ago

I had the same issue after update from 2024-04 to 2024-06a, reverted back to 2024-04 until a fix is available. Debian Buster with Kernel: 4.19.0-26-amd64

Is there a step-by-step guide explaining how to revert the update?

Hi Pedro, my Mailcow is running on a VM in Proxmox, that's why I did a restore to 2024-04.