AUTH NTLM Authentication Format

I am a student worker in Enterprise Systems at the university I attend. We are in the process of converting to a new version of Exchange. We are attempting to use telnet to track messages in our test environment but we can not figure how to correctly input AUTH NTLM username/password string. It needs to be converted to base64.

• What would the format be?
• Something like "domain/user password"?
• Sorry if this is not worded correctly, as I am still very new to this. If this is totally wrong, what would be the proper steps to connect on port 587 with ntlm?

What would the format be? Something like "domain/user password"?

Not so simple: NTLM does not transmit passwords in an unencrypted form. Here is an example SMTP session with NTLM authentication.

Actually, this document describes in detail the work NTLM - I recommend to read for understanding.