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Old 6th March 2006, 20:37
toastmaster toastmaster is offline
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Location: Ephrata, Washington, USA
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Default my nat IP in postfix headers is blacklisted


I connect to my mail server through my ISPs NAT router, whose IP address is constantly being blacklisted because of virus activity within the network. When I send an email using my server, postfix inserts the header

Received: from HOSTNAME (Unknown[<My nats IP>])
which usually causes the outbound message to have a very high score because I get these:

RCVD_IN_XBL: <my NATs IP> listed
in my @spam_admin notifications.

My question is what is the best practice so that my outbound email is not getting blocked by anyone using the spamhaus blacklist.

I have thought about using postfix to strip the headers out, using the postfix command header_checks, but just curious if you have any advice on the subject.
Jason Gerdes
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