I think this is not a Sieve problem but one that affects sieve. When using a sieve redirect, the Sender of that mail gets set to <cyrus@mail> and thus generates an error message about an invalid sending address from SMTP servers other than our own. I am unsure where in my config I should look to make that a FQDN instead of just the imap servers hostname. Any tips greatly appreciated. Thanks. ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html