<?php
$email1 = "info@mytestdomain.com";
$email2 = "my.name.prefix@domain.com";
echo preg_replace("/(.*@)([^\.]+)(\..*)/","$1***$3",$email1); echo " ";
echo preg_replace("/(.*@)([^\.]+)(\..*)/","$1***$3",$email2);
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