Hi All, A couple of months ago we added a 35,000 member list to our new mailman installation. Checking the mailman smtp logs, we were very please with the performance - the whole list went out in 250 seconds. Individual messages were logging in at a fraction of a second. Mailings to this newsletter list go out about every 2-3 weeks. The first three mailings went out just fine - one in as little as 43 seconds to all 35000 members. But suddenly the time shot up to over 4000 seconds on the fourth mailing, and individual messages are going out at between 3 and 120 seconds. Subsequent mailings have had similar numbers and haven't coincided with any particularly busy times for the server, nor has any configuration of the server been changed. We use qmail, by the way. I'm not sure how to account for this huge slowdown. I suspect it may have something to do with the bounce system, because it was the fourth mailing that we first saw a reduction (about 500) in the mailing due to bounce-disabled subscribers. Currently there are about 11000 bounce-disabled subscribers which is not particularly a concern since the list had never been purged before. I would just like to know if anyone out there might have a clue as to the cause of the slowdown and if there might be anything we can do to speed things up. Regards, Craig ------------------------------------------------------ Mailman-Users mailing list [email protected] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
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