==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.0
- Linux/BSD distribution name and version: Ubuntu 15.0
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx):Apache
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
====
I suddenly started getting error like this "maildrop/44CAC20FDC: error writing 7CAF1921348: queue file write error"
I checked postfix and it was running. I tried a lot but nothing worked. And finally I rebooted the machine and it started working.
Is there some problem related to folder space of postfix ? Although I didn't see much issue when I used df command