On 13/11/10 08:53, mouss wrote:
Le 12/11/2010 20:03, Victor Duchovni a écrit :
On Fri, Nov 12, 2010 at 10:06:46AM -0800, Rob Tanner wrote:
Our admissions office sends out mass mailings to prospective students,
anywhere from 5,000 to 25,000 at a time. They are mail-merged and
sent via
outlook to the postfix server, one recipient per message.
I am skeptical that it is in fact one recipient per message. Check your
logs carefully. Do all the recipients get different queue-ids?
The user reports
that outlook sends out 500 messages and then stops. If he restarts
outlook,
it will send out another 500 and then stop again. If he leaves it
overnight, it might send several more thousand by morning. When I
look in
the mail logs, somewhere around 500 messages, followed by a disconnect.
The client disconnects voluntarily, unless it exceeded an error counter.
Postfix has a hard and soft error limit, but these are reset after each
successful delivery. So exceeding the limits on consecutive errors
should
be infrequent.
What I don?t know is whether outlook is disconnecting or whether
postfix is
closing the connection. Is there a limit, configurable or
otherwise, to the
number of messages postfix can receive on a single connection? And
at that
point, does postfix close the connection to the client?
Postfix would log the reason if it forced a client disconnect.
I bet it's the anti-virus software on the client box...
More specifically, I know for a fact that AVast Anti-Virus has issues
with sending large amount of email to a postfix server from outlook.
