We were told by multiple vendors that this didn't work.Also does it hurt if the ADF email is built to have both xml attachment and xml in the body of the email?
Basically, we ran into 4 vendor situations:
1 - Vendor only accepts ADF attachments
2 - Vendor only accepts plain text ADF body contents
3 - Vendor can accept either or both safely
4 - Vendor accepts either, but if both are provided it creates a duplicate
You can't count on any vendors in this industry to make your life easy