Managing POP3 and IMAP4 Security
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.
Applies to: Exchange Server 2007, Exchange Server 2007 SP1, Exchange Server 2007 SP2, Exchange Server 2007 SP3
This topic explains security settings that you can use on the Microsoft Exchange Server 2007 computer that has the Post Office Protocol version 3 (POP3) and Internet Message Access Protocol version 4rev1 (IMAP4) services installed.
Configuring SSL for POP3 and IMAP4 Clients
To help secure communications between your POP3 and IMAP4 clients and the Exchange 2007 server that has the Client Access server role installed, it is strongly recommended that you use Secure Sockets Layer (SSL). For more information about how to use SSL with POP3 and IMAP4, see Configuring TLS and SSL for POP3 and IMAP4 Access.
Configuring Authentication for POP3 and IMAP4
When you use POP3 and IMAP4 clients, you can set authentication options, such as the ability to use TLS encryption, and configure ports for communication with clients. For information about authentication options for POP3 and IMAP4, see Configuring Authentication for POP3 and IMAP4.