==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.3.2 MARIADB edition.
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: Ubuntu 20.04.1 LTS (GNU/Linux 5.4.0-64-generic x86_64)
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi

On my brand new installation, the unmatched entries part of Postfix section in the logwatch mail is very, very large. Same Problem was reportet here:
https://forum.iredmail.org/topic15724-l … -long.html

Since this topic is closed, i post my solution on this way. I found a (maybe better) solution here:
https://forum.efa-project.org/viewtopic.php?t=3596

So:

Edit postfix.conf

sudo vi /usr/share/logwatch/default.conf/services/postfix.conf

And change

$postfix_Enable_Long_Queue_Ids = Yes

Afterwards the "unmatched entries" of Postfix-Log  are gone.

@iRedMail Developers:
Maybe this can be improved as part of the installation script?