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  3. February 2004

Re: Blocking port 25 traffic for spam purposes

Jeff Crosby wrote: 
Someone on this list suggested blocking port 25 from all IPs _except_
CleanMessage.  Anyone doing this?  Working OK?  Downside?  I assume only
spammers would be trying to bypass/ignore the MX record.

Jeff:

I'm not sure how the spammers are getting your MTA address ... as all your MX records point to cleanmessage.

They could be using old dns information, but that doesn't seem to be in the spammers best interest.

david


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