Mailing List Message #98270
From: Andy Kunkle <>
Subject: RE: Strange Errors
Date: Mon, 13 Jul 2009 10:00:35 -0400
To: CommuniGate Pro Discussions <>
X-Mailer: CommuniGate Pro MAPI Connector

Hey Glenn,


Is your server really busy? What OS are you running this on? If it’s a *nix flavor, you might want to run:


iostat 2     


And see what your %iowait is. Sometimes if you’re getting slammed by SPAM it can crush your server. That command will also show you bulk reads per second and writes, so you can see what’s going on with your disk IO.


The only other thing I can think of is in the admin control panel going to:    Settings > Network > DNS Resolver


What is your “Concurrent Requests” set to? I had some problems with DNS for a mailing list because I had that number set too high. I would get DNS Failed messages and e-mails would get stuck in the queue forever. I have it set to 10 on mine, and that seems to be the magic number, at least for me.


Hope this helps.


Andy Kunkle

IT Manager

AIM Engineering & Surveying, Inc.

5300 Lee Blvd

Lehigh Acres, FL 33971



From: CommuniGate Pro Discussions [] On Behalf Of Glenn Tucker
Sent: Monday, July 13, 2009 4:47 AM
To: CommuniGate Pro Discussions
Subject: Strange Errors


Users are beginning to get strange messages saying that E-Mails cannot be delivered. They seem to be affecting one user more than most – Or he complains the loudest.


The E-Mails that he is sending are not only to external addresses but also to addresses on the same domain. He is using the MAPI Plugin running 5.2.14. I have had a look through the logs but can’t anything that relates to it.


If anyone has any ideas please let me know.


From: System Administrator

Sent: 13 July 2009 08:34

To: Sender

Subject: Undeliverable:


Your message did not reach some or all of the intended recipients.


      Subject:  RE:

      Sent:      13/07/2009 08:29


The following recipient(s) could not be reached: on 13/07/2009 08:34

            read time-out



This E-mail is from Miki Travel Limited, a private limited company registered in England & Wales, no. 01509274. The registered office is Vintners' Place, 68 Upper Thames Street, London EC4V 3BJ, United Kingdom. Miki
Travel Limited is a member of ABTA (registration number 44314) and a licensed member of ATOL (licence no. 0494).

This e-mail (and any attachments) may contain privileged and/or confidential information and is intended solely for the use of the individual or entity to whom or to which it is addressed. Any unauthorised dissemination or copying of this E-mail or its attachments, and any use or disclosure of any information contained in them, is strictly prohibited and may be illegal. If you have received this message in error, please contact sender and delete it from your system. Although this email and any attachments are believed to be free of any virus or other defects which might affect any computer or IT system into which they are received, no responsibility is accepted by Miki Travel Limited for any loss or damage arising in any way from the receipt or use thereof.
Any e-mails that you send to Miki Travel Limited may be monitored by systems or persons other than the named communicant, for the purposes of ascertaining whether the communication complies with the law and Miki Travel Limited's policies.

Checked by AVG -
Version: 8.5.375 / Virus Database: 270.13.12/2235 - Release Date: 07/13/09 05:56:00

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