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Jesper Gustavss
Newbie
Joined: 04 December 2007
Online Status: Offline
Posts: 8
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| Posted: 04 December 2007 at 7:20am | IP Logged
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Im using this great product since a couple of years and im very pleased. 
But now i have moved everything to a new server and I have also change my email host.
When im sending (>2000 mails) it stops for 5 to 7 times. To get it to continue i must manualy rename the file in progress from *.mbm to *.mbu and then restart the control center to get it to continue.
What can possibly be wrong?
This is the log file:
16:06:21 Searching for the messages... Folder is C:\MMQ\*.mbm
16:06:21 Creating first thread
16:06:21 of thread #1ab4. Connecting to server...
16:06:21 of thread #1ab4. Connected to server
16:06:21 of thread #1ab4. Sending message from file 00030777.mbm
16:06:21 of thread #1ab4. Reading message file
16:06:21 of thread #1ab4. Sending MAIL FROM command
16:06:21 of thread #1ab4. Sending RCPT TO command
16:06:37 of thread #1ab4. ERROR - No response: connection is lost
16:06:37 of thread #1ab4. ERROR - The message has not been sent due connection failure
16:06:37 All multi-thread resources are freed
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Alex
AfterLogic Support
Joined: 19 November 2003
Online Status: Offline
Posts: 2206
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| Posted: 04 December 2007 at 8:14am | IP Logged
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Probably, your server attempts to validate email addresses of the submitted recipients and this validation takes too long sometimes (for instance, if the domain of the email address was invalid or there was a temporary DNS slowdown).
DNS slowdown can also be caused by the heavy load of the DNS server. If you submit large amount of emails to the server, number of recipient email addresses to check (if the validation is enabled on the server) will be very high too, and the DNS server may start to experience intermittent slowdowns.
If my guess is correct, you should disable recipient email address validation on the server (recommended) or increase timeout value in MMQ.
Regards,
Alex
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Jesper Gustavss
Newbie
Joined: 04 December 2007
Online Status: Offline
Posts: 8
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| Posted: 04 December 2007 at 8:31am | IP Logged
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Thx for your quick reply.
Perhaps you are right and if so i have a bigger problem. I dont think my email host will turn off this feature they have houndreds of customers.
But ill ask them...
I turned up the timeout value to 60 seconds.
Btw, whats your suggestions for the other parameters, such as polling, sends per second, sends per session max threads?
Regards
Jesper
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Alex
AfterLogic Support
Joined: 19 November 2003
Online Status: Offline
Posts: 2206
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| Posted: 04 December 2007 at 8:40am | IP Logged
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Well, you may try to decrease throughput to give the DNS server more time to respond all the queries.
PollingInterval=1
SendsPerSecond=3
SendsPerSession=3
Timeout=60
MaxThreadCount=1
The settings above are very modest (I think any server should be able to deal with). If you find it's working better, you can then increase MaxThreadCount, SendsPerSecond, and SendsPerSession=3 values to see if it's still working fine.
Regards,
Alex
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Topic: ERROR - No response: connection is lost
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