> >> 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
This is helpful. I will add this. My main problem, is the lack of errors in the log. Hopefully this willl help me to narrow this down. Thanks > > -- > _________________________________________________ > > Charité - Universitätsmedizin 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 > > >
