I have a PIX 506E. I have a mail server on our internal network. I setup static translation for it(with an access rule) so that the mail server could be accessed from a public IP. That is working -- I can access the mail server via ping/pop3/smtp whe...

I have a few email servers that send out subscription mailers (10.1.1.16-18) to our customers. This is done to balance the load of emails being sent. I want to make it appear on the outside that the mail sent from all three of these servers is coming...