ubuntu server 22 Mailcow setup help

boxieee

So i have lets say ubuntu22 server i want a local network only mailserver replacing hmail.

network 192.168.100.0/24
mailcow 192.168.100.134
email should be abc@mail.local

ubuntu 22 done
docker done
mailcow pull done
in fqdn put mail.local

docker up unbound error
tried it 3 times fresh install same

what to do now any guide would help

esackbauer

https://docs.mailcow.email/getstarted/prerequisite-system/#important-for-hetzner-firewalls

boxieee

ss -tlpn | grep -E -w ‘25|80|110|143|443|465|587|993|995|4190’
LISTEN 0 4096 0.0.0.0:143 0.0.0.0:* users🙁(“docker-proxy ”,pid=9838,fd=4))
LISTEN 0 4096 0.0.0.0:4190 0.0.0.0:* users🙁(“docker-proxy ”,pid=9893,fd=4))
LISTEN 0 4096 0.0.0.0:80 0.0.0.0:* users🙁(“docker-proxy ”,pid=9901,fd=4))
LISTEN 0 4096 0.0.0.0:110 0.0.0.0:* users🙁(“docker-proxy ”,pid=9819,fd=4))
LISTEN 0 4096 0.0.0.0:443 0.0.0.0:* users🙁(“docker-proxy ”,pid=9931,fd=4))
LISTEN 0 4096 0.0.0.0:993 0.0.0.0:* users🙁(“docker-proxy ”,pid=9855,fd=4))
LISTEN 0 4096 0.0.0.0:995 0.0.0.0:* users🙁(“docker-proxy ”,pid=9870,fd=4))
LISTEN 0 4096 [::]:143 [::]:* users🙁(“docker-proxy ”,pid=9848,fd=4))
LISTEN 0 4096 [::]:4190 [::]:* users🙁(“docker-proxy ”,pid=9898,fd=4))
LISTEN 0 4096 [::]:80 [::]:* users🙁(“docker-proxy ”,pid=9920,fd=4))
LISTEN 0 4096 [::]:110 [::]:* users🙁(“docker-proxy ”,pid=9830,fd=4))
LISTEN 0 4096 [::]:443 [::]:* users🙁(“docker-proxy ”,pid=9940,fd=4))
LISTEN 0 4096 [::]:993 [::]:* users🙁(“docker-proxy ”,pid=9864,fd=4))
LISTEN 0 4096 [::]:995 [::]:* users🙁(“docker-proxy ”,pid=9877,fd=4))

netstat -tulpn | grep -E -w ‘25|80|110|143|443|465|587|993|995|4190’
tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 9838/docker-proxy
tcp 0 0 0.0.0.0:4190 0.0.0.0:* LISTEN 9893/docker-proxy
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 9901/docker-proxy
tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 9819/docker-proxy
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 9931/docker-proxy
tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 9855/docker-proxy
tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 9870/docker-proxy
tcp6 0 0 :::143 :::* LISTEN 9848/docker-proxy
tcp6 0 0 :::4190 :::* LISTEN 9898/docker-proxy
tcp6 0 0 :::80 :::* LISTEN 9920/docker-proxy
tcp6 0 0 :::110 :::* LISTEN 9830/docker-proxy
tcp6 0 0 :::443 :::* LISTEN 9940/docker-proxy
tcp6 0 0 :::993 :::* LISTEN 9864/docker-proxy
tcp6 0 0 :::995 :::* LISTEN 9877/docker-proxy

this is what i got? what am i missing?

esackbauer

What I linked is outgoing ports, and you are showing me your incoming ports. Are you on Hetzner, please describe your setup in more detail. Are really all requirements met? Ubuntu Firewall disabled? Please double check.
Also check the log files, especially unbounds

boxieee

sudo ufw status
Status: inactive

“no” Hetzner

/healthcheck.sh
2024-09-21 10:11:26: Healthcheck: DNS Resolution Failed on attempt 1 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:27: Healthcheck: DNS Resolution Failed on attempt 2 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:29: Healthcheck: DNS Resolution Failed on attempt 3 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:29: Healthcheck: DNS Resolution not possible after 3 attempts for fuzzy.mailcow.email… Gave up!
2024-09-21 10:11:30: Healthcheck: DNS Resolution Failed on attempt 1 for github.com! Trying again…
2024-09-21 10:11:31: Healthcheck: DNS Resolution Failed on attempt 2 for github.com! Trying again…
2024-09-21 10:11:33: Healthcheck: DNS Resolution Failed on attempt 3 for github.com! Trying again…
2024-09-21 10:11:33: Healthcheck: DNS Resolution not possible after 3 attempts for github.com… Gave up!
2024-09-21 10:11:33: Healthcheck: DNS Resolution Failed on attempt 1 for hub.docker.com! Trying again…
2024-09-21 10:11:35: Healthcheck: DNS Resolution Failed on attempt 2 for hub.docker.com! Trying again…
2024-09-21 10:11:36: Healthcheck: DNS Resolution Failed on attempt 3 for hub.docker.com! Trying again…
2024-09-21 10:11:36: Healthcheck: DNS Resolution not possible after 3 attempts for hub.docker.com… Gave up!
2024-09-21 10:11:36: Healthcheck: Too many DNS failures (1 failures allowed, you got 3 failures), marking Healthcheck as unhealthy…
2024-09-21 10:11:26: Healthcheck: DNS Resolution Failed on attempt 1 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:27: Healthcheck: DNS Resolution Failed on attempt 2 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:29: Healthcheck: DNS Resolution Failed on attempt 3 for fuzzy.mailcow.email! Trying again…
2024-09-21 10:11:29: Healthcheck: DNS Resolution not possible after 3 attempts for fuzzy.mailcow.email… Gave up!
2024-09-21 10:11:30: Healthcheck: DNS Resolution Failed on attempt 1 for github.com! Trying again…
2024-09-21 10:11:31: Healthcheck: DNS Resolution Failed on attempt 2 for github.com! Trying again…
2024-09-21 10:11:33: Healthcheck: DNS Resolution Failed on attempt 3 for github.com! Trying again…
2024-09-21 10:11:33: Healthcheck: DNS Resolution not possible after 3 attempts for github.com… Gave up!
2024-09-21 10:11:33: Healthcheck: DNS Resolution Failed on attempt 1 for hub.docker.com! Trying again…
2024-09-21 10:11:35: Healthcheck: DNS Resolution Failed on attempt 2 for hub.docker.com! Trying again…
2024-09-21 10:11:36: Healthcheck: DNS Resolution Failed on attempt 3 for hub.docker.com! Trying again…
2024-09-21 10:11:36: Healthcheck: DNS Resolution not possible after 3 attempts for hub.docker.com… Gave up!

this is from the docker

638c6170d0a7:/# ping fuzzy.mailcow.email
PING fuzzy.mailcow.email (95.217.129.125): 56 data bytes
64 bytes from 95.217.129.125: seq=0 ttl=46 time=164.026 ms
64 bytes from 95.217.129.125: seq=1 ttl=46 time=163.419 ms
64 bytes from 95.217.129.125: seq=2 ttl=46 time=164.433 ms

boxieee

this is going to be a network without internet
Just local Mails on local network

esackbauer

Then it does not wonder why unbound is unhealthy. Mailcow is not designed for running without internet.
You could try to point unbound to DNS servers in the LAN, maybe that helps:
https://docs.mailcow.email/manual-guides/Unbound/u_e-unbound-fwd/

DocFraggle

Another option is to set

SKIP_UNBOUND_HEALTHCHECK=y

in your mailcow.conf
The question is why you need a full groupware stack if you just want to send some local emails around

boxieee

DocFraggle
just looking for replacement for hmail

[unknown]

right now the ubuntu22server i have setup with mailcow has internet as you can see in logs i have posted pings too

esackbauer

If you just want to replace hmail and add no features then maybe docker-mailserver is the one for you.
Its a bit simpler than the full groupware stack that mailcow has.