==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.8
- Linux/BSD distribution name and version: ubuntu 18.04 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.
====

i noticed in my nightly logwatch admin emails the following entry:

INSECURE MODE (mode 0600 expected) (crontabs/mlmmj)

when i look at the crontabs location on server (/var/spool/cron/crontabs) i see:

-rw------- 1 root root     323 Nov 11 10:02 amavis
-rw-r--r-- 1 root root     310 Nov 11 10:02 mlmmj
-rw------- 1 root crontab 1765 Nov 27 15:01 root
-rw------- 1 root root     411 Nov 11 10:02 sogo

so should mlmmj be fixed to mode 0600?