Microsoft exchange transport service won't start after CU9 installation on exchange 2013.

Hi guys,

I receive an error while trying to start manually the exchange transport service and several event error logs caused after CU9 installation on my exchange 2013.

See below the errors:

From the services panel i receive the error
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Error 1067: The process terminated unexpectedly.
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and from event log
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WIN-SIV0NS666M3      1046      Warning      MSExchange TransportService      Application      11/10/2015 12:28:50 AM

Worker process with process ID 16536 requested the service to terminate with an unhandled exception.
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WIN-SIV0NS666M3      1036      Error      MSExchangeTransport      Application      11/10/2015 12:28:49 AM
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WIN-SIV0NS666M3      1018      Error      MSExchangeTransport      Application      11/10/2015 12:28:49 AM

The address is already in use. Binding: 0.0.0.0:465.
-----

Please help !
The server is in production and mail flow is not working.

Thank you.
Dimitris_vAsked:
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Dimitris_vAuthor Commented:
Solution:

For some reason the CU9 installation resets the receive connectors.
So outbound default proxy had the same port with an external to internet frontend connector.

I set back the ports and works correctly.

Be careful: You also have to change relative IMAP or POP3 settings.

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