Hi all, I use cyrus 2.0.15 and postfix It works fine. but I have a question on message delivri all message contains header Return-Path: <[EMAIL PROTECTED]> It's normal ? my config : /etc/postfix/master.cf contains : cyrus unix - n n - - pipe flags=R user=cyrus argv=/usr/local/cyrus/bin/deliver -m ${extension} ${user} /etc/postfix/main.cf contains : mailbox_transport = cyrus /etc/cyrus.conf imap cmd="imapd" listen="imap" prefork=3 maxchild=50 pop3 cmd="pop3d" listen="pop3" prefork=3 maxchild=50 lmtpunix cmd="lmtpd" listen="/home/cyrus/conf/socket/lmtp" prefork=3 Thanks all. -- Julien Marchal -- Email : [EMAIL PROTECTED] Université NANCY 2 - C.R.I. 13, Rue Michel Ney CO 75 - 54037 Nancy Cédex