Put encoding to unicode or UTF-08 for my mails

When i receive a mail in my database from application GLPI i don’t know if you know it the mail is not at format unicode - (UTF-08)

I change the value in my preferences , in

File - Preferences - User Preferences - Mail - Internet

Multilingual Internet mail

The option is set change to Best Match, Unicode[UTF-8],

I change also in configuration document, Mime, Advanced ? ADvANCED IN BOUND MESSAGES options , For non-mime messages to “UTF-8”.

But the problem appears…

Can you help me .

example,

Description du ticket

Auteur: ww

Date début: 2006-11-08 18:23:00

Source de la demande: Helpdesk

Matériel concerné : Général

Statut: En cours (Attribué)