Has my PostFix mail server been compromised. Sending mail randomly.

view story

https://www.centos.org – I am new to this forum. System is CentOS 6.3 and has Postfix and Dovecot mail server. I know when I send outgoing mail it leaves on remote port 25 and incoming mail arrives on local port 25. I have... [by DougE] (HowTos)