i know this post hasnt been important for some years now, but im having the same problem.
i m the admin of a galery for a custumer.
when a user gets his activation email, MY sender-emailadress is shown to the user, but i want the emaildress, or better the name of the company, shown in the sender-field.
where can the piece of code to change this? it must be in the sending functions, but cant find it yet.