Concepts and Planning << >>

IMAP4 Client Support

IMAP4 enables clients to access and manipulate unencrypted messages stored within the users' private and public folders on a Microsoft Exchange Server computer. All third-party e-mail clients that support IMAP4 (RFC 2060) can be used to connect to a Microsoft Exchange Server computer and access messages. To send outbound messages from Microsoft Exchange Server, IMAP4 e-mail clients can use the Internet Mail Service or any other SMTP server.

IMAP4 works in a similar way as POP3. When IMAP4 is used to access messages, the client submits requests to the Microsoft Exchange Server computer. When an IMAP4 client sends a message, the Internet Mail Service routes messages to the Microsoft Exchange Server computer to other SMTP hosts, depending on the recipient's address.