JakeMS
19-07-2013, 20:58

I have to disagree with the "with an expensive SSL cert" part. For a simple mail server I don't think there is much need for expensive SSL certificates.
Personally, I'd opt for a cert specific to say, a sub domain like mail.domain.com with a basic verified one from say StartSSL or Namecheap (the cheaper options) if it's only for a mail server for personal or in-house business use there is no need for an expensive SSL certificate unless you are re-selling email addresses or hosting emails for others.
As long as it can secure the connection from A to B without triggering SSL errors it should be fine.
But, that's just my opinion .