<?php


$email = 'a."b@c".d."@".e.f@g.h';
        $parts = explode("@", $email);
        $domain = array_pop($parts);
        $name = implode("@",$parts);
echo "name: ".$name."\n";
echo "domain: ".$domain."\n";
$email = '/."@@@@@@"./@a.b';
        $parts = explode("@", $email);
        $domain = array_pop($parts);
        $name = implode("@",$parts);
echo "name: ".$name."\n";
echo "domain: ".$domain."\n";