Verify an e-mail-adress - syntax and dns

[Christophe]

Steven D'Aprano a écrit :
> By memory, in an thread about the same topic just a few days ago, Fredrik
> Lundh posted a link to Perl's FAQs that suggests a method for "validating"
> email addresses: treat it like a password and ask the user to type it
> twice. That will protect against simple typos and input errors.

I hate that thing. When I see that, I type my email once and copy/paste 
into the second edit box. This is useless AND annoying at the same time.