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January 13, 2006
Spam
This morning we found our outgoing mail server was listed one one of the Spam lists.
http://www.mxtoolbox.com/blacklists.aspx?IP=140.211.127.100
We discovered the cause of the listing was due to a computer on campus sending out mass emails. This can happen intentionally or un-intentionally.
Once our server gets listed, there is a process for getting it removed from the various lists. During the process not all, but many messages sent to off-campus recipients will not get delivered.
To help prevent further listings, we added a Spam check on our outgoing mail server. This check is exactly the same as the one for incoming mail, except it checks for a much higher probability of the message being Spam ( meaning its less restrictive ). This check does not look at the content of the message, it simply looks at the characteristics to deterimine the probability of Spam.
Posted by knabet at January 13, 2006 10:04 AM