Configure IP Addresses and Ports for POP3 and IMAP4 Access

Applies to: Exchange Server 2010

You can use the EMC and the Shell to configure Microsoft Exchange to use ports other than the default ports on the Microsoft Exchange Server 2010 server that has the POP3 and IMAP4 services enabled.

Looking for other management tasks related to setting up POP3 and IMAP4? Check out Managing POP3 and IMAP4.

Use the EMC to configure IP addresses and ports for POP3 and IMAP4

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "POP3 and IMAP4" entry in the Client Access Permissions topic.

1. In the console tree, navigate to Server Configuration > Client Access.
2. In the work pane, click the POP3 and IMAP4 tab.
3. Select either POP3 or IMAP4, and then under POP3 or IMAP4, click Properties in the action pane.
4. On the Binding tab, under TLS or Unencrypted Connections, click Add.
5. On the TLS or Unencrypted Connection Settings page, under IP address to Use, do one of the following:
   • To use all available IP addresses for a server, select Use all IP addresses available on this server.
   • To manually specify an address, select Specify an IP address, and then enter an IP address in the dialog box.
6. Under Port to Use, in the box next to Port, enter a port number, or accept the default port.
7. Click OK to save your changes.

Use the Shell to configure IP addresses and ports for POP3 and IMAP4

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "POP3 and IMAP4" entry in the Client Access Permissions topic.

This example sets the IP address and port for communicating with Exchange by using POP3 with Secure Sockets Layer (SSL).

Set-PopSettings -SSLBindings: IPaddress:Port

This example sets the IP address and port for communicating with Exchange by using POP3 with no encryption or Transport Layer Security (TLS) encryption.

Set-PopSettings -UnencryptedOrTLSBindings IPaddress:Port

This example sets the IP address and port for communicating with Exchange by using IMAP4.

Set-ImapSettings -SSLBindings: IPaddress:Port

This example sets the IP address and port for communicating with Exchange by using IMAP4 with no encryption or TLS encryption.

Set-ImapSettings -UnencryptedOrTLSBindings IPaddress:Port 

For more information about syntax and parameters, see the following topics:

• Set-PopSettings
• Set-ImapSettings

Other Tasks

After you configure IP addresses and ports for POP3 and IMAP4, you may also want to:

• Enable POP3 and IMAP4 Users to Use Default Protocol Settings
• Enable IMAP4 in Exchange 2010
• Enable POP3 in Exchange 2010