The Exchange Server 2013 Transport services needs restarting

Hi

The inbound email flow stops, saying "insufficient resources" on the remote mail server that is trying to deliver email to my Exchange server. The message implies there is not enough hard disk space. However, there is enough hard drive space of 20GIG.

Then I restart the transport services and mail seems to flow.  

Any answers?
yaminz66Asked:
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AmitIT ArchitectCommented:
Post the event ID error.
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Simon Butler (Sembee)ConsultantCommented:
Exchange back pressure works on a percentage basis, not a fixed size basis. Therefore it is possible that you dropped below the point where back pressure has stopped email flow.

This article on TechNet explains how the Back Pressure number is worked out.
http://technet.microsoft.com/en-us/library/bb201658(v=exchg.150).aspx

Simon.
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yaminz66Author Commented:
HI
Thanks let me check this

Yamin
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yaminz66Author Commented:
/Exchange back pressure works on a percentage basis, not a fixed size basis. Therefore it is possible that you dropped below the point where back pressure has stopped email flow.//

Where can I check this and modify it?
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AmitIT ArchitectCommented:
Troubleshooting steps starts from checking Event logs. 99% admin doesn't check event logs.
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Simon Butler (Sembee)ConsultantCommented:
Did you read the article that I posted? It explains exactly how it works.
It also has the strong recommendation that you do NOT change the settings.

Simon.
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yaminz66Author Commented:
Hi

Yes, I have read through it but it does not address how I should allocate more resources or reduce the demand for it.

Yamin
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Simon Butler (Sembee)ConsultantCommented:
The recommendation is that you don't change any of the settings. It tells you how to calculate the requirements, which you should do, then ensure that enough resources are available.
The only time I see it causing problems are where people have not assigned enough disk space to the system, OR have too much. I saw a system with a 2TB system drive (way over the top) which had the problem a lot because it works on percentage. Cut it down to 300gb and the problems went away.

Simon.
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yaminz66Author Commented:
HI

After creating more space this problem seems to have stopped.

I am just monitoring it now

Yamin
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