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POP3 Client Support

The Post Office Protocol version 3 (POP3) enables users with POP3 clients to retrieve mail from their Microsoft Exchange Server Inbox. Any third-party e-mail client that supports POP3 can connect to a Microsoft Exchange Server computer to access messages. To send outbound messages from Microsoft Exchange Server, POP3 e-mail clients can use the Internet Mail Service or any other SMTP server. Microsoft Exchange Server POP3 support is compliant with RFCs 1939 and 1734.