[IMail Forum] Spam Help

[John Melchiori]

I host dozens of sites and the people who use us for email from these sites
use their domain names to send and receive mail.

How do I stop someone from using the servers for sending mail when I do not
know the address that the real clients will be using?

        John

Please visit http://www.ipswitch.com/support/mailing-lists.html 
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