[Zope] form to a email in a correct presentation ?

Hello everybody, I have a problem, can you tell me if it's possible : I send a form to an e-mail but I receive it brut, and I would like to receive it in a good presentation, you can see that I receive on the attachments with this email on name it "bad_reception" and see what I want on name it "good_reception". I hope that it's possible but if it isn't possible tell me. I thank all of you a lot for all of your help... Vincent.