Problem with Return-Path from certain ISPs

Ricardo Branco ricardo at
Thu Dec 3 15:00:22 GMT 2009


We started noticing issues with return-path not being passed though to 
This causes a knock on affect on Sieve filters in DovecotLDA which rely 
on Return-Path being passed though.

If I take MailScanner out the loop then all is well, Return-Path exists 
to my mailbox, but if MS is running then it does not come through.

Any reason why this would be happening?

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