Nasser Heidari: > (delivery temporarily suspended: lost connection with > mail.xyz.ab[1.2.3.4] while receiving the initial server greeting) > > What does lost connection with ... while receiving the initial server > greeting) means?
Wietse: > Look at tcpdump output. A common cause for this is the presence of > a cheap firewall that does not properly implement some TCP features. Nasser Heidari: > I use freebsd ipfw as a firewall. There may be MORE THAN ONE firewall in the path. Now is a good time to do a proper tcpdump measurement. Without data you're just wasting time. Wietse