POP3 and IMAP4 Issues
Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
You can configure your Exchange environment so that Microsoft Exchange users can connect to Microsoft Exchange Server 2007 by using the Post Office Protocol version 3 (POP3) or Internet Message Access Protocol version 4rev1 (IMAP4) protocols. The following topics will help you troubleshoot specific problems with POP3 and IMAP4:
Administrator Cannot Connect to the Administrator Mailbox Using POP3 or IMAP4
Verify that Your Exchange Environment is Configured to Support POP3 and IMAP4
The Exchange POP3 Service or the Exchange Transport Service Does Not Restart
For More Information
For information about how to plan and deploy POP3 and IMAP4 access for your Exchange clients, see Planning for Client Access Servers.
For information about how to manage POP3 and IMAP4, see Managing POP3 and IMAP4.