Hi,

+1. I think an open source project shouldn't force it's users to see branding messages.

Moreover, you want to brand GLPI by adding a signature message... But have you inserted other open sources softwares signature to your e-mail like PHPMailer, Postfix or Linux? No!

If you follow your mind, you should have a signature like this :

--

E-mail generated by GLPI X.XX.X

Sended by PHPMailer X.XX using Postfix X.X.X

Hosted by Linux XXXX ON Apache X.X runing PHP 5.X

I think the GLPI signature should be inserted by default in the "signature" field of the Notification > general configuration page of GLPI which can be modified if wanted.

NB: I also think that an Open Source software shouldn't do everything a proprietary software does.

Best regards.