==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.6
- Linux/BSD distribution name and version: Ubuntu 16.02 LTS
- 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! Every morning I get something like this:

--------------------- Amavisd-new Begin ------------------------

Redundant argument in sprintf at /usr/share/logwatch/scripts/services/amavis line 1338, <> line 942.
Redundant argument in sprintf at /usr/share/logwatch/scripts/services/amavis line 1338, <> line 942.
       12   Miscellaneous warnings 

      930   Total messages scanned ------------------  100.00%

lines count and number may vary. How to fight this?