Whitelisting - which header?
Posted by: hobbes
Posted on: 2006-11-24 06:12:00
Hi all. Can anyone confirm which header entry is used for whitelisting? It clearly isn't the "From:" header, as far as I can see.
Is it "Return-Path:" or "X-Sender:" or "Sender:"? I'm trying different tests, but I don't get much email to test this quickly! :)