if (!isvalid_email(Post::v('email'))) {
$err[] = "Le champ 'E-mail' n'est pas valide.";
} elseif (!isvalid_email_redirection(Post::v('email'))) {
if (!isvalid_email(Post::v('email'))) {
$err[] = "Le champ 'E-mail' n'est pas valide.";
} elseif (!isvalid_email_redirection(Post::v('email'))) {