Hi,

I am using Exchange Server 2013 CU1 installed on Windows Server 2008 R2 Standard.

Today, in the morning the transport service stopped suddenly and due to this mail flow completely stopped.

I have tried rebooting server and delayed restart the transport service but no luck.

In event log I found this application error

Faulting application name: MSExchangeSubmission.exe, version: 15.0.620.20, time stamp: 0x512192de
Faulting module name: Microsoft.Exchange.Net.ni.dll, version: 15.0.620.18, time stamp: 0x511c5c25
Exception code: 0xc00000fd
Fault offset: 0x00000000006670c7
Faulting process id: 0x5dc0
Faulting application start time: 0x01ceb821ae37d0ef
Faulting application path: C:\Program Files\Microsoft\Exchange Server\V15\Bin\MSExchangeSubmission.exe
Faulting module path: C:\Windows\assembly\NativeImages_v4.0.30319_64\Microsoft.E91f4adf5#\4903d9451e8ac647b54cdb09ac31c042\Microsoft.Exchange.Net.ni.dll
Report Id: ec863962-2414-11e3-abfc-3c4a92f7d5a1

Any one have any idea for the same..

Thanks in advance..