/ip

Binds the POA to a specific IP address when the machine where it runs uses multiple IP addresses, such as in a clustering environment. This affects all port numbers: client/server, MTP, HTTP, IMAP, and so on. Without the /ip switch, the POA will bind to all available IP addresses and users will be able to access the post office through all available IP addresses. See Configuring the POA for Clustering.

See also /cluster.