[SOLVED] Postfix/Dovecot: Auth failure when sending mail

Support
1

Hi Team,
my freedombox runs on a debian trixie with freedombox 26.4.1.

If i try to send email via Thunderbird there is an error in autentication to Freedombox.

In Cockpit is no error message, and i cant see any problems.

In Cockpit Service the screen is looping.

In Plinth Diagnose are 4 errors:

Dovecot/Postfix
|Gebunden an tcp4 Port 11332 |gescheitert|
|Gebunden an tcp4 Port 11333 |gescheitert|
|Gebunden an tcp4 Port 11334 |gescheitert|

I tried to repair, but the errors stay.

If i use Plinth Menue rspamd i get the Display:
Service Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Apache/2.4.66 (Debian) Server at dthfbx.fbx.one Port 443
#////
If i call systemctl status rspamd i get:
● rspamd.service - rapid spam filtering system
Loaded: loaded (/usr/lib/systemd/system/rspamd.service; enabled; preset: enabled)
Active: active (running) since Thu 2026-03-12 20:20:21 CET; 4s ago
Invocation: XXXXXXXXXXXXXXXXXXXXXXXXXX
Docs: About Rspamd | Rspamd Documentation
Main PID: 65230 (rspamd)
Tasks: 6 (limit: 9019)
Memory: 75.7M (peak: 76.1M)
CPU: 937ms
CGroup: /system.slice/rspamd.service
├─65230 “rspamd: main process”
├─65233 “rspamd: rspamd_proxy process (localhost:11332)”
├─65234 “rspamd: controller process (localhost:11334)”
├─65235 “rspamd: normal process (localhost:11333)”
├─65236 “rspamd: normal process (localhost:11333)”
└─65237 “rspamd: hs_helper process”

And a restart of this job change nothing.

Do you have any hint?

Best regards,
Dieter

2

Can you access your mailbox with Thunderbird i.e., the problem is only for sending?

3

Just checked my logs and I have no errors on my FreedomBox mail server. No errors in sending mails with Thunderbird either. Did you try to restart your server and see how it looks after the reboot?

4

Hi Avron, thank you for your response.
The freedombox cant send and recive mails.
Syncing with Thunderbird works, the draft folder syncronise to.

Best regards, Dieter

5

Hi David,
a couple of times, allways the same problem.
And like you nothing in the logs.

Best regards,

Dieter

6

Please close this post, it is working.
I have tried so much, i cant realy say what the reason was.
Many thank for your help!

Best regards,

Dieter