==== Required information ====
- iRedMail version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Related log if you're reporting an issue:
======== Required information ====
- iRedMail version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: CentOS 6
- Related log if you're reporting an issue:
====

When checking my server's memory using using free -m I'm getting this result:

                     total       used       free     shared    buffers     cached
Mem:             1024       1024          0             0             0             0
-/+ buffers/cache:       1024          0
Swap:                  0            0          0

Does this mean the 1Gb is not enough for iRedMail?  I have only 39 domains on it with 106 mailboxes.

The programs apparently eating my memory are:

clamd: 23%
mysqld: 10%
amavisd: 10% x 3, so 30% in total