On Thu, Feb 25, 2010 at 02:45:32PM +0200, Niemi Hannu wrote: > I have been fighting with a problem with Postfix. There are some users that > insist on sending mail to large groups of recipients (yes I know that mailman > or similar is made for that) and there is a limit of number of recipients, > which I have after extensive testing managed to pinpoint to 500 recipients. > Less or equal amount goes, 501 not. And the size of the header or mail body > doesn't seem to be of any significance. > > Now...where on Earth (or at least Postfix) this limit of 500 comes from? > > Here is the result of postconf -n: >
Useles without logs. Show logging that demonstrates: - Postfix processing a 500 recipient message in a way that you find acceptable. - Postfix processing a 501 recipient message in a way that you find problematic. Show all log entries related to each event, not just smtpd logs, but also related cleanup, qmgr, and delivery agent logs. Post the configuration used at the time the logs were capture along with the logs, restart Postfix prior to the test. -- Viktor. P.S. Morgan Stanley is looking for a New York City based, Senior Unix system/email administrator to architect and sustain our perimeter email environment. If you are interested, please drop me a note.