You can use an invisible webView with some javascript code, or another tool to silently connect to the server you just specified and try verifying the address. Yet, please keep in mind, that most servers deny a reply, in order to avoid spammers getting valid addresses. I think you can a) stay with a regEx check and b) send a confirmation email.
You can use an invisible webView with some javascript code, or another tool to silently connect to the server you just specified and try verifying the address. Yet, please keep in mind, that most servers deny a reply, in order to avoid spammers getting valid addresses. I think you can a) stay with a regEx check and b) send a confirmation email.