Set up the customer's paperless settings to use the transaction email address (instead of a hard coded address, contact code or the main email address).  Put the email address in each order / invoice, and... done.

Then, when printing, the system "from" address can be overridden from the print screen (in a very non-obvious location).

Thanks for updating me on Sage's current solution.

The capability in Sage seems to be there, but the flow is not quite what we're after.

Several other applications out there have an email icon on the Print Preview
screen that allows really flexible email generation.

-Pick the sender
-Pick or type in a recipient

-Send

I'll keep checking in.
Cheers

I'm playing with this free solution to integrate Sage user email addresses to dynamically handle and email pdf

documents from Sage to customers.

www.printerplusplus.com/