Enabling and configuring the IMAP service port
In addition to enabling or disabling the IMAP TCP/IP or SSL port, you can change the port number, and enable or disable TCP/IP or SSL authentication options.
About this task
By default, IMAP clients connect to TCP/IP port 143 on the Domino® server. You might need to specify a different port number if there are multiple instances of the IMAP service on the host machine as, for example, on a partitioned server. You might also change the default port to a nonstandard port number to "hide" it from clients attempting to connect to the default port, or if another application uses the default port on the server. Disable the port or change the security options to prevent IMAP clients from accessing the Domino server.
Configuring IMAP authentication options on servers that use Internet Site documents
About this task
On servers that use Internet Site documents, the IMAP service obtains port authentication settings from the Security tab of the IMAP Site document, rather than from the Server document. As a result, when Internet Site documents are used, the TCP/IP and SSL port authentication settings described in the procedures that follow are not available in the Server document. Settings in the Server document still provide the port numbers and status for the IMAP TCP/IP and SSL ports, and enable the IMAP ports to honor server access restrictions.
To determine whether the use of Internet Site documents is enabled for a server, check the value of the Load Internet configurations from Server\Internet Sites documents field on the Basics tab of the Server document. If this field is set to Enabled, the server uses Internet Site documents to configure all of its Internet protocols (IMAP, POP3, SMTP, and so forth).
If the server uses
Internet Site documents, and an IMAP Site document is not present
in the Domino Directory,
or the authentication options in a configured IMAP Site document are
set to No, users cannot connect to the IMAP service. In each case,
IMAP clients receive the error This site is not enabled on
the server
when attempting to connect to the IMAP service:
To enable the IMAP TCP/IP port
About this task
Procedure
- From the Domino Administrator, click the Configuration tab and then open the Server document for the server that runs the IMAP service.
- Click the tab.
- To enable the default TCP/IP port, in the Mail (IMAP) column, change the value of the TCP/IP port status field to Enabled.
- Click Save and Close or edit additional settings, as directed in the following procedure.