BuddyPress.org

Please note:

There are at least two “mail from” plug-ins. One does NOT work after BuddyPress has been activated. while the other one DOES.

The one that does NOT work is called “wp-mailfrom.” It only works as long as BuddyPress is not active.

The other one, called “mail from”, DOES work. It works even when BuddyPress is active.