Hi, Nope, we ruled out message size and the possibility that our customer's msn.com mailboxes were over their limit. It wasn't just a few msn.com email addresses either - it blew up on us on a huge scale. Every piece of mail our mail server tried to send to msn.com for several days (including 1K test messages from our support mailbox on the server) resulted in the same SMTP_DELIV_FAILED error. However, we could send the same 1K test message from an email account we maintain on mail.yahoo.com for testing. Those messages were delivered with no problem.
We probably have 6 or 7 of these remote email boxes that we use to troubleshoot various email issues our users might encounter. In fact a couple of the test mailboxes we use we've swapped out with fellow ISPs in exchange for a reciprocal test account on our mail server. Test messages were sent from those accounts with the same results. Oh, and in case anyone is wondering, the answer is... No. Our mail server hasn't been listed on any of the spam or RBL lists since well before IMail 5.0 was released. I can't vouch for before that time since we ran Post.Office 2.0 way back before we switched to IMail. Now *THAT* mail server was an open-relay spammers dream come true! I could tell some stories... :) Anyway, I'm in the process of cracking open our SMTP logs from earlier this week... approx 30-50 meg a day - so bear with me! I'll try to make some 'before' and 'after' comparisons and I'll post the results to the list. Hopefully this will help some of the other IMail Admins who are having problems sending to certain domains. Best regards, Julie Julie Silverman Microsoft Certified Systems Engineer, Network Geek ---------------------------------------------------------- Acme Internet http://www.acmeinternet.com voice: 952-928-8828 Microsoft Certified Partner ---------------------------------------------------------- ---------- Original Message ---------------------------------- From: Smart Business Lists <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Date: Thu, 5 Dec 2002 15:12:51 -0600 >Thursday, December 5, 2002 you wrote: >JS> 12:01 01:15 SMTP-(00000168) Connect msn.com [207.46.181.13:25] (1) >JS> 12:01 01:15 SMTP-(00000168) >JS> 12:01 01:15 SMTP-(00000168) SMTP_DELIV_FAILED >JS> 12:01 01:15 SMTP-(00000168) >QUIT > > The most common reason I see for these from msn and hotmail is > really, really big files. > > I think, but I'm not sure, that it is not so much that the files > are too large but that at some point in the process the mailbox > size exceeds a limit and the connection is just dropped instead of > an error. > > But I'm speculating just based on what I've observed. > >Terry Fritts > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
