I spent 12 hours figuring this one out because a client could not get his newsletter out to most of the 15000 aol email addresses.
In a nutshell, AOL is throttling inbound SMTP connections. Not sure how their algorithm works but it slectively drops the SMTP connection (connection reset). It really doesn't appear to have a pattern. They are doing this - presumeably - to prevent spammers from being able to send emails at a rapid rate. The workaround is to go into SMTP in Imail and set retries at 288 and the Queue timer at 10 (minutes). This means that Imail will try to send queued messages each 10 minutes, 288 times (2 days). I figured with all the testing I did, that I can get 600-700 emails per hour out to AOL. I sent sent 2500 eamils to AOL last night and watched the .LST files closely as they went out. It took 36 retries. Your log file will show something like this when it fails (Ver 7.04): 12:18 16:19 SMTP-(00000684) Connect aol.com [64.12.137.184:25] (1) 12:18 16:19 SMTP-(00000684) s: s (or rl-rcv: connection reset in Ver. 7.1+) 12:18 16:19 SMTP-(00000684) 12:18 16:19 SMTP-(00000684) SMTP_DELIV_FAILED 12:18 16:19 SMTP-(00000684) >QUIT 12:18 16:19 SMTP-(00000684) s: s 12:18 16:19 SMTP-(00000684) s: s Hope this helps. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Pete Pesce Sent: Saturday, December 21, 2002 8:18 AM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Imail 6.05 Cannot send to AOL.COM I have been getting the same thing. It is strange because I can send to certain addresses & Then all of a sudden I cannot send at all. Does AOL put a Temp block if you are sending too many messages to them at once? Please help. Thank you, Peter Pesce VP PersonalizationMall.com www.PeresonalizationMall.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Dustin Freeman Sent: Thursday, December 19, 2002 9:46 AM To: '[EMAIL PROTECTED]' Subject: [IMail Forum] Imail 6.05 Cannot send to AOL.COM I haven't done a lot of searching yet but has anyone seen this before? Just in the last few days email to aol.com accounts have been coming back as undeleverable. No reson is noted. Delivery failed 3 attempts: [EMAIL PROTECTED] We have not changed any settings on our server. Any ideas? Thank you Dustin 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/ 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/ 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/
