The only way I have been able to do it has been with LANDesk Data Analytics. I believe LANDesk uses ldapwhoami.exe to gather limited LDAP information and unfortunately, email isn't one of them. I am sure you can script something out that can add that info.
thanks... I'm relatively novice at scripting. I'm good at finding what others have done. And I'm mediocre at making it mine.
I'll see what I can find.
If anyone out there has done something similar and can offer some guidance, I'd love to hear from you.