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...irtual (or if not using postfix, whatever equivalent) and stop allowing new ones. This is FAR simpler and workable than what you are trying to do, and has the added benefit of working very simply and having nearly no impact on your server. -- NON-FLAMMABLE IS NOT A CHALLENGE Bart chalkboard Ep. BABF13

I do know that sub-addressing with a special character is nowadays a normal, better, way to do it. Unfortunately we have used this system for a very long time, starting around 2005... So there are a lot of existing email addresses. I am considering changing to a new hosting company, that's why I started looking for a solution.? The current company has very limited functionality for

So, one of the problems I am seeing is that people are trying to fake users into revealing information by sending from an outside domain but with an internal reply to address and claiming to be administration, IT or what not. I can set up something that will reject if from is outside the domain by reply to is internal. The problem is in some setups, there are fetchmail setups. I do not want to