Hello,

I have Exchange 2013 version 15.00.1076.009. I have problem to start IMAP 4 service. I can see in log  following events:

Failed to start listening (Error: 10048). Binding: 0.0.0.0:143.

The address is already in use. Binding: 0.0.0.0:143.

Failed to open one or more bindings. The service will be stopped.

IMAP 4 backend service is running.

Do you have any other software on the server that might be using that port?

run netstat -anob and check to see if something is listening on that port.

Hi,

As what Ed Crowley and Hinte says, please check whether the port 143 has been used by other applications. For example, a customized Relay connector is configured with PORT 143 and Front End transport role is assigned.

If that is the case, please disable it then start IMAP service to have a try.

Regards,

Hi,

Any updates?

Regards,