On Tue, May 17, 2011 at 2:35 PM, Victor Duchovni <victor.ducho...@morganstanley.com> wrote: >> > 2. Your mailserver is attempting to send more than 100 messages in one >> > session. >> >> > As for item 2, the only limit postfix allows me to set is the time >> > that the connection will be reused. The default 300s seems too large >> > for them. How can I approximate the 100 delivery limit using time? I >> > set it to 30s for now and will see if we block with them again. > > Note, instead of forcing random contortions on clients, a server that > wants to enforce this feature should simply reply with 421 to RSET after > 100 transactions, and Postfix will politely abandon the connection and > try a new one. >
Apparently they take it as a sign of spaming if you try to send more than they want. Ideally, it should work as you describe...
