[RKDinOKC]

Good Morning...How ya'll are?

Just a note...If you have a public IP for an email server that emails comes in on, then try to send email from that server on a different public IP it will get blacklisted and no email servers will accept traffic from it. When you put an email server on the internet you contact your ISP hand have what is called reverse lookup set to the dns name of your server. If you type in the DNS name of your server it returns it's public IP, if you type in the IP it gives the name of the server. It is the most basic thing that email servers use to determine they are connecting with a real email server and not a spammer. If he reverse lookup does not match the connection is refused. It's email server 101.

Why can't an IT manager or the Microsoft Exchange consultant understand that?