the form @samp{po:@var{username}}, in the inbox list of an Rmail file.
@code{movemail} handles such a name by opening a connection to the POP
server. The @code{MAILHOST} environment variable specifies the machine
-to look for the server on.
+to look for the server on; alternatively, you can specify the POP server
+host name as part of the mailbox name using the syntax
+@samp{po:@var{username}:@var{hostname}}.
@vindex rmail-pop-password
@vindex rmail-pop-password-required