sophana wrote: > Hi > > I'm hosting a forum (phpbb) with more than 3500 users with centos 4.3. > The forum admins would like to send an email to its (3500) users. I > configured phpbb to use smtp (postfix-2.1.5-4.2.RHEL4.mysql.centos4) to > send the email. > I raised the max destination limit from 1000 to 5000, and made a test. > Here the disaster began: > Majority of the users received from 20 to 50 emails. > Looking at the logs, postfix divided the email into several ones with 50 > recipient each (as documented). I think the problem was that when one of > the recipients was unreachable, the mail went into defered state, to be > retried later. The problem (bug?) is that the mail was sent again to all > 50 recipients, explaining why so many users received lot of mails. > Anyone had a similar problem? > Any suggestion for that? That should not happen. Can you put together a test-case to prove the problem so you can provide a bug-report with a reproducible problem. I use postfix, but if I had that problem and could nail it onto Postfix, I'd likely switch immediately to something else. Sendmail, probably. OTOH I'd be using mailman for regular mailings. Whether that would creat a problem with postfix I don't know, but surely the combination is fairly common. -- Cheers John -- spambait 1aaaaaaa at coco.merseine.nu Z1aaaaaaa at coco.merseine.nu Tourist pics http://portgeographe.environmentaldisasters.cds.merseine.nu/ Please do not reply off-list