==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.4
- Linux/BSD distribution name and version: Ubuntu 14.04 LTS x64
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====
Hi,

Recently I noticed the below in daily Logwatch email in the Cron section:

**Unmatched Entries**
Apr 21 06:42:01 mail CRON[19288]: message repeated 3 times: [ (sogo) CMD (/usr/sbin/sogo-tool expire-sessions 30; /usr/sbin/sogo-ealarms-notify)]
Apr 21 10:24:01 mail CRON[14906]: message repeated 2 times: [ (sogo) CMD (/usr/sbin/sogo-tool expire-sessions 30; /usr/sbin/sogo-ealarms-notify)]
Apr 21 04:38:01 mail CRON[3297]: message repeated 2 times: [ (sogo) CMD (/usr/sbin/sogo-tool expire-sessions 30; /usr/sbin/sogo-ealarms-notify)]

They have recently appeared for once month. Before that time there is no such errors.

What should I do to fix this?

Thank you,
Quy