Windows integrated authentication for "send mail" action

[ASolovey]

I didn't go that far to investigate technical explanations of what's happening.

I have AD domain environment with Exchange 2007 server. One of authentication options it supports for Receive Connector is "windows integrated authentication".

This option allows programs use default domain credentials to authenticate to Exchange for sending mail without specifiying plain text credentials.

For example, .NET class SmtpClient has property UseDefaultCredentials that allows sending mail programmatically and authenticate in the way I described. It does work.

The issue I'm researching is to make VBP "send mail" action to authenticate to Exchange without storing name and password in the step properties.

Regards,
Alex.