[Exim] Logging auth data?

    I'm getting some retarded behaviour from Outlook that I need to
troubleshoot:

2003-01-16 13:15:27 Authentication failed for (DEREKS) [xxx.xxx.xxx.xxx]: 535 Incorrect authentication data

    I'd like to know what Outlook is sending as the auth data, but I'm
doing this over an SSL (TLS) connection so I can't just sniff it.

    Is there any way to have Exim log the username and password that
was submitted (as a temporary measure, of course)?  I didn't see anything
like this in the Spec, but I may have missed it.

    As an aside, Courier-IMAP has an option for this and I've found it
very valuable in troubleshooting.

Thanks,
Derek