How do I authenticate to Microsoft Exchange 2007?

0 votes
asked Mar 22, 2012 by Rebex KB (8,430 points)
edited Mar 22, 2012

Are there any issues when connecting to Microsoft Exchange 2007 server using IMAP or POP3 protocols?

Applies to: Rebex Secure Mail

1 Answer

0 votes
answered Mar 22, 2012 by Rebex KB (8,430 points)
edited Mar 22, 2012

By default, Microsoft Exchange does not support plain text authentication methods for security reasons. This leaves us with the following options:

A. Authenticate over a connection protected using TLS/SSL

You need Rebex Secure Mail to be able to use TLS/SSL. For more information about this, check out the TLS/SSL tutorial.

B. Use NTLM authentication

To utilize NTLM authentication, call the Smtp, Imap or Pop3 object's Login method with an optional argument which specifies that NTLM is to be used. Unlike plaintext authentication, NTLM is allowed over an unencrypted channel by default.

C. Enable unencrypted plain text authentication

If none of the two options above is suitable for you, the only solution is to enable plain text authentication for non-TLS/SSL connections using Exchange Management Console.

See also