Customized mail body field and PGP

Hi, one of our user is using the PGP plug-in for Notes for sending encrypted e-mail.We have recently customized the mail template (4.6.7) ofr addind automaticaly the complete sender informations (name, phone, etc…).

But for the user with the PGP plug-in, the body field is always reset to blank.

I did not found where this field is composed and replace the customized one.

Thanks for help

Fred