Hello,

I have installed the update 2025-03. Unfortunately, I get the following error message after the update:

nginx-mailcow-1 | 2025/04/06 17:42:49 [error] 18#18: *13 connect() failed (111: Connection refused) while connecting to upstream, client: dovecot, server: _, request: “POST / HTTP/1.1”, upstream: “fastcgi://php-fpm:9001”, host: “nginx:9082”
nginx-mailcow-1 | dovecot - - [06/Apr/2025:17:42:49 +0200] “POST / HTTP/1.1” 502 157 “-” “LuaSocket 3.0.0”

After the update, the connection via IMAP or SMTP is no longer possible. However, I can access the mysql DB on the computer.

I have now copied the backup back again.
Has anyone already solved such a problem?

Thanks
Karsten

The error message is 8 days old, and IMAP and SMTP do not use nginx at all…
You need to check the dovecot and postfix logs.

Also check if mailcow binds correctly to the SMTP and IMAP ports with netstat -tulpen

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