The postfix container of my mailcow installation just stops from time to time. I see no clues in the log as you can see between 15.9.2025 and 17.9.2025 when I startet it again with docker compose up -d.
In the admin page under Systems & Container, the container just disappears also the watchdog does not send me a message. (Mailcow Version 2025-07)
17.09.2025, 11:56:56 info connect from unknown[81.30.107.173]
17.09.2025, 11:56:46 info daemon started – version 3.7.11, configuration /opt/postfix/conf
17.09.2025, 11:56:46 info starting the Postfix mail system
15.09.2025, 11:03:56 info disconnect from unknown[81.30.107.146] ehlo=1 auth=0/1 rset=1 commands=⅔
15.09.2025, 11:03:56 info lost connection after AUTH from unknown[81.30.107.146]
15.09.2025, 11:03:56 warning warning: unknown[81.30.107.146]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=diseno