Exchange 2010 Relaying – How to use it, how to turn it off

Email Relay is one of the more annoying features of email servers. However, there are times it can be pretty useful. It’s annoying because Spammers love to exploit it, and it’s useful because it can allow you to centralize a lot of email services.

What is Email Relay?

Email relay is, quite simple, a feature that allows one email server to use another email server for sending mail.…

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