Change subject all non-whitelisted mail postfix/dovecot

Discussion in 'Server Operation' started by counterpoint, Jan 2, 2017.

  1. counterpoint

    counterpoint New Member

    More and more spam is getting past DNSBL checks. I don't like using mechanisms like Spam Assassin as the "spam" still has to be checked because there are too many false positives. I'm interested in adding something like "NOT WHITE LISTED" to the subject of every mail item that comes from a mail server not listed at Can anyone advise how I would set about doing this?

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