I have a client who receives a newsletter from an IP that is blocked by dnsbl.njabl.org. He insists he wants to receive this newsletter even though NJABL has the IP listed as an open relay. Is there anyway to keep using NJABL, however allow this specific IP address to go through?
Sort of side-stepping the issue, but we use NJABL in spamassassin. If you are using spamassassin, you can give this list a high score which would guarantee spam treatment for any mail coming from a server on the list and the particular account could have that rule neutralized.
Another idea along the same lines, if you don't use spamassassin, is to set up that list for marking only (in sendmail.mc) and then delete anything marked for everyone *except* the account that wants it. How to do this is explained somewhere but fbefore I try to remember where I'll wait to see if you are interested ;-)
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