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Mailcow Hybrid setup ACME domains request certificate #5913

Closed baskraai closed 2 months ago

baskraai commented 5 months ago

Contribution guidelines

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

Description

In the documentation for Mailcow Hybrid setup (https://docs.mailcow.email/third_party/exchange_onprem/third_party-exchange_onprem/) is states that you should setup mail relay. But if you enable that ACME will not request certificates for that domain (https://github.com/mailcow/mailcow-dockerized/blob/36b5cccd186090d726de62b6b00d1e842e67aacd/data/Dockerfiles/acme/acme.sh#L226). It should do that because mailboxes are hosted on Mailcow.

Logs:

MariaDB [mailcow]> SELECT domain,backupmx,active FROM domain WHERE backupmx=0 and active=1;
Empty set (0.001 sec)

MariaDB [mailcow]> SELECT domain,backupmx,active FROM domain;
+-----------------+----------+--------+
| domain          | backupmx | active |
+-----------------+----------+--------+
| domain1.nl      |        1 |      1 |
| domain2.nl.     |        1 |      1 |
+-----------------+----------+--------+
2 rows in set (0.001 sec)

---
> docker compose logs acme-mailcow -f
acme-mailcow-1  | Wed Jun 19 10:41:49 CEST 2024 - Initializing, please wait...
acme-mailcow-1  | Wed Jun 19 10:41:50 CEST 2024 - Using existing domain rsa key /var/lib/acme/acme/key.pem
acme-mailcow-1  | Wed Jun 19 10:41:50 CEST 2024 - Using existing Lets Encrypt account key /var/lib/acme/acme/account.pem
acme-mailcow-1  | Wed Jun 19 10:41:51 CEST 2024 - Found A record for mailcow.example.nl: xx.xx.xx.xx
acme-mailcow-1  | (skipping check, returning 0)
acme-mailcow-1  | Wed Jun 19 10:41:51 CEST 2024 - Confirmed A record xx.xx.xx.xx
acme-mailcow-1  | Wed Jun 19 10:41:51 CEST 2024 - Certificate /var/lib/acme/mailcow.example.nl/cert.pem validation done, neither changed nor due for renewal.
acme-mailcow-1  | Wed Jun 19 10:41:51 CEST 2024 - Certificates were successfully validated, no changes or renewals required, sleeping for another day.

Steps to reproduce:

1. Setup mailcow instance
2. Setup Office 365 with https://docs.mailcow.email/third_party/exchange_onprem/third_party-exchange_onprem/
3. Add domains with relay config enabled
4. restart acme-container / run "mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain FROM domain WHERE backupmx=0 and active=1" -Bs" inside acme container

Which branch are you using?

master

Which architecture are you using?

x86

Operating System:

Ubuntu 22.04

Server/VM specifications:

2 vCPU, 8GB RAM

Is Apparmor, SELinux or similar active?

no

Virtualization technology:

KVM (Proxmox)

Docker version:

26.1.4, build 5650f9b

docker-compose version or docker compose version:

v2.27.1

mailcow version:

2024-04

Reverse proxy:

No

Logs of git diff:

diff --git a/data/assets/ssl-example/cert.pem b/data/assets/ssl-example/cert.pem
index 96d16bec..2283bda5 100644
--- a/data/assets/ssl-example/cert.pem
+++ b/data/assets/ssl-example/cert.pem
@@ -1,19 +1,30 @@
diff --git a/data/assets/ssl-example/key.pem b/data/assets/ssl-example/key.pem
index cedf35a0..285a68ed 100644
--- a/data/assets/ssl-example/key.pem
+++ b/data/assets/ssl-example/key.pem
@@ -1,27 +1,52 @@
diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 572300db..d536df94 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -173,3 +173,36 @@ 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
+  zen.spamhaus.org=127.0.0.[10;11]*8
+  zen.spamhaus.org=127.0.0.[4..7]*6
+  zen.spamhaus.org=127.0.0.3*4
+  zen.spamhaus.org=127.0.0.2*3
+
+# User Overrides
+myhostname = mailcow.example.nl
+
diff --git a/docker-compose.yml b/docker-compose.yml
index 3efd6a42..f8580761 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -609,36 +609,6 @@ 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 ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
61248   12M MAILCOW    all  --  *      *       0.0.0.0/0            0.0.0.0/0            /* mailcow */
60584   12M DOCKER-USER  all  --  *      *       0.0.0.0/0            0.0.0.0/0
60584   12M DOCKER-ISOLATION-STAGE-1  all  --  *      *       0.0.0.0/0            0.0.0.0/0
49406 9857K ACCEPT     all  --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
 4708  293K DOCKER     all  --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0
 6470 1617K ACCEPT     all  --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0
 4594  286K ACCEPT     all  --  br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0
    0     0 ACCEPT     all  --  *      docker0  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
    0     0 DOCKER     all  --  *      docker0  0.0.0.0/0            0.0.0.0/0
    0     0 ACCEPT     all  --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0
    0     0 ACCEPT     all  --  docker0 docker0  0.0.0.0/0            0.0.0.0/0

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

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.249         tcp dpt:6379
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.5           tcp dpt:8983
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.6           tcp dpt:3306
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:12345
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:4190
    7   448 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:443
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:995
    2    88 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.8           tcp dpt:80
   56  3340 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:993
    0     0 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:143
    1    44 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.250         tcp dpt:110
    3   156 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:587
   41  2460 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:465
    4   208 ACCEPT     tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            172.22.1.253         tcp dpt:25

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
 pkts bytes target     prot opt in     out     source               destination
 6470 1617K DOCKER-ISOLATION-STAGE-2  all  --  br-mailcow !br-mailcow  0.0.0.0/0            0.0.0.0/0
    0     0 DOCKER-ISOLATION-STAGE-2  all  --  docker0 !docker0  0.0.0.0/0            0.0.0.0/0
 101K   24M RETURN     all  --  *      *       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       all  --  *      br-mailcow  0.0.0.0/0            0.0.0.0/0
    0     0 DROP       all  --  *      docker0  0.0.0.0/0            0.0.0.0/0
10899 3852K RETURN     all  --  *      *       0.0.0.0/0            0.0.0.0/0

Chain DOCKER-USER (1 references)
 pkts bytes target     prot opt in     out     source               destination
 101K   24M RETURN     all  --  *      *       0.0.0.0/0            0.0.0.0/0

Chain MAILCOW (1 references)
 pkts bytes target     prot opt in     out     source               destination
  190 11320 DROP       all  --  *      *       194.169.175.10       0.0.0.0/0
    0     0 DROP       tcp  --  !br-mailcow br-mailcow  0.0.0.0/0            0.0.0.0/0            /* mailcow isolation */

Logs of ip6tables -L -vn:

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

Chain FORWARD (policy DROP 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
13432 2953K MAILCOW    all      *      *       ::/0                 ::/0                 /* mailcow */
13432 2953K DOCKER-USER  all      *      *       ::/0                 ::/0
13432 2953K DOCKER-ISOLATION-STAGE-1  all      *      *       ::/0                 ::/0
 7020 2486K ACCEPT     all      *      br-mailcow  ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
 5211  355K DOCKER     all      *      br-mailcow  ::/0                 ::/0
 1201  112K ACCEPT     all      br-mailcow !br-mailcow  ::/0                 ::/0
 5210  355K ACCEPT     all      br-mailcow br-mailcow  ::/0                 ::/0
    0     0 ACCEPT     all      *      docker0  ::/0                 ::/0                 ctstate RELATED,ESTABLISHED
    0     0 DOCKER     all      *      docker0  ::/0                 ::/0
    0     0 ACCEPT     all      docker0 !docker0  ::/0                 ::/0
    0     0 ACCEPT     all      docker0 docker0  ::/0                 ::/0

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

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:4190
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::c  tcp dpt:443
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:995
    1    64 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::c  tcp dpt:80
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:993
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:143
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::b  tcp dpt:110
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::10  tcp dpt:587
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::10  tcp dpt:465
    0     0 ACCEPT     tcp      !br-mailcow br-mailcow  ::/0                 fd4d:6169:6c63:6f77::10  tcp dpt:25

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
 pkts bytes target     prot opt in     out     source               destination
 1201  112K DOCKER-ISOLATION-STAGE-2  all      br-mailcow !br-mailcow  ::/0                 ::/0
    0     0 DOCKER-ISOLATION-STAGE-2  all      docker0 !docker0  ::/0                 ::/0
24551 5368K RETURN     all      *      *       ::/0                 ::/0

Chain DOCKER-ISOLATION-STAGE-2 (2 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 DROP       all      *      br-mailcow  ::/0                 ::/0
    0     0 DROP       all      *      docker0  ::/0                 ::/0
 2249  209K RETURN     all      *      *       ::/0                 ::/0

Chain DOCKER-USER (1 references)
 pkts bytes target     prot opt in     out     source               destination
24551 5368K RETURN     all      *      *       ::/0                 ::/0

Chain MAILCOW (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
 1275 73500 DOCKER     all  --  *      *       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     all  --  *      *       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
 3231  244K MASQUERADE  all  --  *      !br-mailcow  172.22.1.0/24        0.0.0.0/0
    0     0 MASQUERADE  all  --  *      !docker0  172.17.0.0/16        0.0.0.0/0
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.249         172.22.1.249         tcp dpt:6379
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.5           172.22.1.5           tcp dpt:8983
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.6           172.22.1.6           tcp dpt:3306
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:12345
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:4190
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.8           172.22.1.8           tcp dpt:443
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:995
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.8           172.22.1.8           tcp dpt:80
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:993
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:143
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.250         172.22.1.250         tcp dpt:110
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.253         172.22.1.253         tcp dpt:587
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.253         172.22.1.253         tcp dpt:465
    0     0 MASQUERADE  tcp  --  *      *       172.22.1.253         172.22.1.253         tcp dpt:25

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 RETURN     all  --  br-mailcow *       0.0.0.0/0            0.0.0.0/0
    0     0 RETURN     all  --  docker0 *       0.0.0.0/0            0.0.0.0/0
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:7654 to:172.22.1.249:6379
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:18983 to:172.22.1.5:8983
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:13306 to:172.22.1.6:3306
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            127.0.0.1            tcp dpt:19991 to:172.22.1.250:12345
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:4190 to:172.22.1.250:4190
    7   448 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:443 to:172.22.1.8:443
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:995 to:172.22.1.250:995
    2    88 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:80 to:172.22.1.8:80
   56  3340 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:993 to:172.22.1.250:993
    0     0 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:143 to:172.22.1.250:143
    1    44 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:110 to:172.22.1.250:110
    3   156 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:587 to:172.22.1.253:587
  632 37920 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:465 to:172.22.1.253:465
    4   208 DNAT       tcp  --  !br-mailcow *       0.0.0.0/0            0.0.0.0/0            tcp dpt:25 to:172.22.1.253:25

Logs of ip6tables -L -vn -t nat:

Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    1    64 DOCKER     all      *      *       ::/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     all      *      *       ::/0                !::1                  ADDRTYPE match dst-type LOCAL

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
 1169  110K MASQUERADE  all      *      !br-mailcow  fd4d:6169:6c63:6f77::/64  ::/0
    0     0 MASQUERADE  all      *      !docker0  fd00:dead:beef:c0::/80  ::/0
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:4190
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::c  fd4d:6169:6c63:6f77::c  tcp dpt:443
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:995
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::c  fd4d:6169:6c63:6f77::c  tcp dpt:80
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:993
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:143
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::b  fd4d:6169:6c63:6f77::b  tcp dpt:110
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::10  fd4d:6169:6c63:6f77::10  tcp dpt:587
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::10  fd4d:6169:6c63:6f77::10  tcp dpt:465
    0     0 MASQUERADE  tcp      *      *       fd4d:6169:6c63:6f77::10  fd4d:6169:6c63:6f77::10  tcp dpt:25

Chain DOCKER (2 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 RETURN     all      br-mailcow *       ::/0                 ::/0
    0     0 RETURN     all      docker0 *       ::/0                 ::/0
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:4190 to:[fd4d:6169:6c63:6f77::b]:4190
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:443 to:[fd4d:6169:6c63:6f77::c]:443
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:995 to:[fd4d:6169:6c63:6f77::b]:995
    1    64 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:80 to:[fd4d:6169:6c63:6f77::c]:80
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:993 to:[fd4d:6169:6c63:6f77::b]:993
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:143 to:[fd4d:6169:6c63:6f77::b]:143
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:110 to:[fd4d:6169:6c63:6f77::b]:110
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:587 to:[fd4d:6169:6c63:6f77::10]:587
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:465 to:[fd4d:6169:6c63:6f77::10]:465
    0     0 DNAT       tcp      !br-mailcow *       ::/0                 ::/0                 tcp dpt:25 to:[fd4d:6169:6c63:6f77::10]:25

DNS check:

172.64.155.249
104.18.32.7
milkmaker commented 3 months ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.