I am looking for a qualified security expert who has solid experience with Linux servers to help us ensure our SMTP and POP3 servers are hardened. We have a dedicated Linux server running Red Hat Linux and Cpanel.
**** NOTE **** We want you to start *IMMEDIATELY* because we suspect one of our mail servers has been compromised. We will make a selection within *2 HOURS* from the time of this posting.
Is it possible to log all SMTP activity? We feel we need to know the answer to this question to determine if the server has been compromised.