Sun Java System Messaging Server 6.3 Administration Guide

5.1.2 Specifying Port Numbers

For each service, you can specify the port number that the server is to use for service connections:

You might need to specify a port number other than the default if you have, for example, two or more IMAP server instances on a single host machine, or if you are using the same host machine as both an IMAP server and a Messaging Multiplexor server. (For information about the Multiplexor, see Chapter 7, Configuring and Administering Multiplexor Services.

Keep the following in mind when you specify a port: