can't create alias if user exists

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Environment & Versions

Environment

[ ] docker-compose
[ ] kubernetes
[ ] docker swarm

Versions

To find your version, get the image name of a mailu container and read the version from the tag (example for version 1.7).

$> docker ps -a | grep mailu
370c59e1ae16        mailu/dovecot:1.7   "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   110/tcp, 143/tcp, 993/tcp, 2525/tcp, 4190/tcp                                                                                                                                                                                                                                                                                                                                                                     mailu_imap_1
659ab403323b        mailu/rspamd:1.7    "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   11332/tcp, 11334-11335/tcp                                                                                                                                                                                                                                                                                                                                                                                        mailu_antispam_1
2a7c6891203c        mailu/postfix:1.7   "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   25/tcp, 10025/tcp                                                                                                                                                                                                                                                                                                                                                                                                 mailu_smtp_1
e7239bd8ebb6        mailu/clamav:1.7    "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   3310/tcp                                                                                                                                                                                                                                                                                                                                                                                                          mailu_antivirus_1
f12fc6bd6af1        mailu/unbound:1.7   "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   53/tcp, 53/udp                                                                                                                                                                                                                                                                                                                                                                                                    mailu_resolver_1
cbea3355472a        mailu/admin:1.7     "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   80/tcp                                                                                                                                                                                                                                                                                                                                                                                                            mailu_admin_1
7f4e3f0bcb80        mailu/nginx:1.7     "/bin/sh -c /start.py"   3 weeks ago         Up 3 weeks (healthy)   23.253.245.62:25->25/tcp, ::1:25->25/tcp, 23.253.245.62:110->110/tcp, ::1:110->110/tcp, 23.253.245.62:143->143/tcp, ::1:143->143/tcp, 23.253.245.62:465->465/tcp, ::1:465->465/tcp, 23.253.245.62:587->587/tcp, ::1:587->587/tcp, 23.253.245.62:993->993/tcp, ::1:993->993/tcp, 0.0.0.0:10025->10025/tcp, 23.253.245.62:995->995/tcp, ::1:995->995/tcp, 443/tcp, 0.0.0.0:10143->10143/tcp, 0.0.0.0:8088->80/tcp   mail
$> grep MAILU_VERSION docker-compose.yml mailu.env
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}nginx:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}unbound:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}admin:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}dovecot:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}postfix:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}rspamd:${MAILU_VERSION:-1.7}
docker-compose.yml:    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}clamav:${MAILU_VERSION:-1.7}
docker-compose.yml:#    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}radicale:${MAILU_VERSION:-1.7}

Description

Using the mailu interface, i can not add an alias to redirect mail if the use account already exists. example. user1@domain.com exists and mail is delivered. I also wand mail addressed to user1@domain.com to be forwarded to user2@domain.com. when submitting the new alias, the page just reloads. there is no error message. i am able to create an alias on an account that does not exist at all.

Replication Steps

create a user account in the maillu UI attempt to create an alias from that same user account to somewhere else the page will reload but the alias will not be created

Expected behaviour

i would expect that the alias would be created and the mail would be delivered to two mailboxes. note that this appears to work if i use the command line docker-compose exec admin flask mailu alias user1 domain.com "user2@domain.com", however the mail is still only delivered to user1@domain.com

Logs

Often it is very useful to include log fragments of the involved component. You can get the logs via docker logs <container name> --tail 1000. For example for the admin container: docker logs mailu_admin_1 --tail 1000 or using docker-compose docker-compose -f /mailu/docker-compose.yml logs --tail 1000 admin If you can find the relevant section, please share only the parts that seem relevant. If you have any logs, please enclose them in code tags, like so:


from admin when adding to UI:
admin_1      | 172.23.0.13 - - [25/Feb/2021:14:40:20 +0000] "POST /ui/alias/create/atxlawyer.com HTTP/1.1" 200 10526 "https://mailu.libertymarketing.me/admin/ui/alias/create/atxlawyer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.152 Safari/537.36"

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