[Mimedefang] Boilerplate configuration

[FMG CED]

Dear MIMEdefang users,

I have two question for you.... I hope that you'll solve my problem.

I'm trying to use MIMEdefang in order to modify an email. In particular
I would like to append the sender and recipient email in every outgoing
html and text email message.
I have tried to do this with the function
append_html_boilerplate($entity, $boilerplate, 0);
but I cannot use the $Sender variable.

Would you please give me some hints?

Thank you very much

Sincerely

Marco