I'm sorry, that was actually yesterday's log. Here's today's: 07 Feb 2013 00:00:00 Send error: Unknown error [10053] 07 Feb 2013 07:54:36 Send error: Unknown error [10053] 07 Feb 2013 10:01:28 Send error: Unknown error [10053] 07 Feb 2013 10:40:02 Send error: Unknown error [10053] 07 Feb 2013 10:41:01 -> RCPT TO:<[log in to unmask]> 07 Feb 2013 10:41:01 501 5.1.3 Invalid address 07 Feb 2013 10:50:49 -> RSET 07 Feb 2013 10:50:49 421 4.4.1 Connection timed out 07 Feb 2013 11:09:09 Send error: Unknown error [10053] 07 Feb 2013 11:39:22 Send error: Unknown error [10053] 07 Feb 2013 11:49:33 -> RSET 07 Feb 2013 11:49:33 421 4.4.1 Connection timed out 07 Feb 2013 11:59:35 -> RSET 07 Feb 2013 11:59:35 421 4.4.1 Connection timed out 07 Feb 2013 12:09:41 -> RSET 07 Feb 2013 12:09:41 421 4.4.1 Connection timed out 07 Feb 2013 12:19:43 -> RSET 07 Feb 2013 12:19:43 421 4.4.1 Connection timed out 07 Feb 2013 12:29:45 -> RSET 07 Feb 2013 12:29:45 421 4.4.1 Connection timed out 07 Feb 2013 12:39:58 -> RSET 07 Feb 2013 12:39:58 421 4.4.1 Connection timed out 07 Feb 2013 12:50:06 -> RSET 07 Feb 2013 12:50:06 421 4.4.1 Connection timed out 07 Feb 2013 13:00:06 -> RSET 07 Feb 2013 13:00:06 421 4.4.1 Connection timed out 07 Feb 2013 13:10:18 -> RSET 07 Feb 2013 13:10:18 421 4.4.1 Connection timed out 07 Feb 2013 13:20:27 -> RSET 07 Feb 2013 13:20:27 421 4.4.1 Connection timed out ________________________________________ From: LISTSERV site administrators' forum [[log in to unmask]] on behalf of John Corwin [[log in to unmask]] Sent: Thursday, February 07, 2013 1:17 PM To: [log in to unmask] Subject: Re: Strange Delivery Delays I do manage the mail server. I don't think I set limits for connections per timeframe, but then again, I'm not as familiar with all the commands on Exchange 2010. It seems to me that the listserv is sending about 200 messages to the Exchange server, and once it has delays for 200 messages, it slows down the handoff between the listserv and exchange at the rate in which the delays are removed. So if I can find a way to increase those numbers, maybe that'll fix it. Does that sound right? Here's the listserv log for today: 06 Feb 2013 00:00:02 Send error: Unknown error [10053] 06 Feb 2013 00:32:46 Send error: Unknown error [10053] 06 Feb 2013 03:28:22 Send error: Unknown error [10053] 06 Feb 2013 03:41:47 Send error: Unknown error [10053] 06 Feb 2013 07:10:19 Send error: Unknown error [10053] 06 Feb 2013 07:21:06 Send error: Unknown error [10053] 06 Feb 2013 07:42:33 Send error: Unknown error [10053] 06 Feb 2013 08:27:00 Send error: Unknown error [10053] 06 Feb 2013 08:35:34 Send error: Unknown error [10053] 06 Feb 2013 08:58:25 Send error: Unknown error [10053] 06 Feb 2013 09:10:55 Send error: Unknown error [10053] 06 Feb 2013 09:41:05 Send error: Unknown error [10053] 06 Feb 2013 10:11:10 Send error: Unknown error [10053] 06 Feb 2013 10:44:06 Send error: Unknown error [10053] 06 Feb 2013 10:54:40 -> RSET 06 Feb 2013 10:54:40 421 4.4.1 Connection timed out 06 Feb 2013 11:05:07 -> RSET 06 Feb 2013 11:05:07 421 4.4.1 Connection timed out 06 Feb 2013 11:15:11 -> RSET 06 Feb 2013 11:15:11 421 4.4.1 Connection timed out 06 Feb 2013 11:25:23 -> RSET 06 Feb 2013 11:25:23 421 4.4.1 Connection timed out 06 Feb 2013 11:35:39 -> RSET 06 Feb 2013 11:35:39 421 4.4.1 Connection timed out 06 Feb 2013 11:46:05 -> RSET 06 Feb 2013 11:46:05 421 4.4.1 Connection timed out 06 Feb 2013 11:56:30 -> RSET 06 Feb 2013 11:56:30 421 4.4.1 Connection timed out 06 Feb 2013 12:06:42 -> RSET 06 Feb 2013 12:06:42 421 4.4.1 Connection timed out 06 Feb 2013 12:16:48 -> RSET 06 Feb 2013 12:16:48 421 4.4.1 Connection timed out 06 Feb 2013 12:26:49 -> RSET 06 Feb 2013 12:26:49 421 4.4.1 Connection timed out 06 Feb 2013 12:36:50 -> RSET 06 Feb 2013 12:36:50 421 4.4.1 Connection timed out 06 Feb 2013 12:46:52 -> RSET 06 Feb 2013 12:46:52 421 4.4.1 Connection timed out 06 Feb 2013 12:56:54 -> RSET 06 Feb 2013 12:56:54 421 4.4.1 Connection timed out 06 Feb 2013 13:06:59 -> RSET 06 Feb 2013 13:06:59 421 4.4.1 Connection timed out 06 Feb 2013 13:17:00 -> RSET 06 Feb 2013 13:17:00 421 4.4.1 Connection timed out 06 Feb 2013 13:27:01 -> RSET 06 Feb 2013 13:27:01 421 4.4.1 Connection timed out 06 Feb 2013 13:37:01 -> . 06 Feb 2013 13:37:01 421 4.4.1 Connection timed out 06 Feb 2013 13:47:05 -> RSET 06 Feb 2013 13:47:05 421 4.4.1 Connection timed out 06 Feb 2013 13:57:07 -> RSET 06 Feb 2013 13:57:07 421 4.4.1 Connection timed out 06 Feb 2013 14:07:09 -> RSET 06 Feb 2013 14:07:09 421 4.4.1 Connection timed out 06 Feb 2013 14:17:13 -> RSET 06 Feb 2013 14:17:13 421 4.4.1 Connection timed out 06 Feb 2013 14:27:14 -> RSET 06 Feb 2013 14:27:14 421 4.4.1 Connection timed out 06 Feb 2013 14:48:20 Send error: Unknown error [10053] 06 Feb 2013 14:58:27 -> RSET 06 Feb 2013 14:58:27 421 4.4.1 Connection timed out 06 Feb 2013 15:08:39 -> RSET 06 Feb 2013 15:08:39 421 4.4.1 Connection timed out 06 Feb 2013 15:18:40 -> RSET 06 Feb 2013 15:18:40 421 4.4.1 Connection timed out 06 Feb 2013 15:29:11 -> RSET 06 Feb 2013 15:29:11 421 4.4.1 Connection timed out 06 Feb 2013 15:39:35 -> RSET 06 Feb 2013 15:39:35 421 4.4.1 Connection timed out 06 Feb 2013 15:49:43 -> RSET 06 Feb 2013 15:49:43 421 4.4.1 Connection timed out 06 Feb 2013 16:00:04 -> RSET 06 Feb 2013 16:00:04 421 4.4.1 Connection timed out 06 Feb 2013 16:10:30 -> RSET 06 Feb 2013 16:10:30 421 4.4.1 Connection timed out 06 Feb 2013 16:20:41 -> RSET 06 Feb 2013 16:20:41 421 4.4.1 Connection timed out 06 Feb 2013 16:30:42 -> RSET 06 Feb 2013 16:30:42 421 4.4.1 Connection timed out 06 Feb 2013 16:40:48 -> RSET 06 Feb 2013 16:40:48 421 4.4.1 Connection timed out 06 Feb 2013 16:51:14 -> RSET 06 Feb 2013 16:51:14 421 4.4.1 Connection timed out 06 Feb 2013 17:01:15 -> RSET 06 Feb 2013 17:01:15 421 4.4.1 Connection timed out 06 Feb 2013 17:11:16 -> RSET 06 Feb 2013 17:11:16 421 4.4.1 Connection timed out 06 Feb 2013 17:21:17 -> RSET 06 Feb 2013 17:21:17 421 4.4.1 Connection timed out 06 Feb 2013 17:31:20 -> RSET 06 Feb 2013 17:31:20 421 4.4.1 Connection timed out 06 Feb 2013 17:41:23 -> RSET 06 Feb 2013 17:41:23 421 4.4.1 Connection timed out 06 Feb 2013 17:51:24 -> RSET 06 Feb 2013 17:51:24 421 4.4.1 Connection timed out 06 Feb 2013 18:01:25 -> RSET 06 Feb 2013 18:01:25 421 4.4.1 Connection timed out 06 Feb 2013 18:53:57 Send error: Unknown error [10053] 06 Feb 2013 19:04:01 -> RSET 06 Feb 2013 19:04:01 421 4.4.1 Connection timed out 06 Feb 2013 19:14:04 -> RSET 06 Feb 2013 19:14:04 421 4.4.1 Connection timed out 06 Feb 2013 19:19:56 -> RSET 06 Feb 2013 19:19:56 451 4.7.0 Timeout waiting for client input 06 Feb 2013 19:34:11 Send error: Unknown error [10053] 06 Feb 2013 19:41:31 -> RSET 06 Feb 2013 19:41:31 451 4.7.0 Timeout waiting for client input 06 Feb 2013 19:54:47 Send error: Unknown error [10053] 06 Feb 2013 20:21:51 Send error: Unknown error [10053] 06 Feb 2013 20:45:44 Send error: Unknown error [10053] 06 Feb 2013 21:00:00 Send error: Unknown error [10053] 06 Feb 2013 21:24:55 Send error: Unknown error [10053] 06 Feb 2013 23:00:00 Send error: Unknown error [10053] ________________________________________ From: LISTSERV site administrators' forum [[log in to unmask]] on behalf of [log in to unmask] [[log in to unmask]] Sent: Thursday, February 07, 2013 1:08 PM To: [log in to unmask] Subject: Re: Strange Delivery Delays John wrote on 02/07/2013 01:01:06 PM: > As of now, about an hour later, there are still 2,317 files in > there. So apparently if these are files waiting to be queued and > sent out, there must be something going on between the listserv and > the transfer to the mail server? Most likely. Do you manage the mail server? Any limits imposed on it for the number of connections per timeframe? That could also be imposed if there is a firewall or other network device in front of the mail server too. "No one would ever connect to the mail server more that 200 times per hour!" Confidentiality Notice: This electronic message and any attachments may contain confidential or privileged information, and is intended only for the individual or entity identified above as the addressee. If you are not the addressee (or the employee or agent responsible to deliver it to the addressee), or if this message has been addressed to you in error, you are hereby notified that you may not copy, forward, disclose or use any part of this message or any attachments. 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