I'm using exim4 and i receive mail using fetchmail and check using courier-imap (various clients). What I find quite annoying that sending and receiving mail, exim adds headers that are quite useless, and rather disrupting. It adds these, which mess up my reply function, as sylpheed (primary client) uses return-path (i think) for some reason. Envelope-to: email@example.com Return-path: firstname.lastname@example.org How do I get exim to stop adding these? Naitik.