How do I check to make sure no one is using my site as a relay po int?

From: "Holstrom, Don" <DHolstrom@xxxxxxx>
To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
Date: Tue, 31 Dec 2002 11:31:29 -0500

I am getting an inordinate amount of inbound mail failures with crazy
addresses and crazy subject lines.

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» How do I check to make sure no one is using my site as a relay po int?

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