> The error is on the senders Exchange server. We have no > record of an error in the postfix logs.
Nothing at all? > The sender admin said that when he does a telnet 25 test > message, it send successfully, but then the connection > freeezes and eventually times out with the 421 error. I > have not been able to reproduce it. debug_peer_list = ip.of.the.exchange then enjoy the increased logging for all traffic from ip.of.the.exchange -- _________________________________________________ Charit� - Universit�tsmedizin Berlin _________________________________________________ Ralf Hildebrandt i.A. des IT-Zentrum | Netzwerkdienste Stabsstelle des Klinikumsvorstandes Campus Mitte Schumannstr. 20/21 | D-10177 Berlin Tel. +49 30 450 570155 | Fax +49 30 450 570916 [EMAIL PROTECTED] http://www.charite.de
