How to check if an email address exists without sending an email ?
In this article, we will learn to check if an address exists without sending an email.Approach: By using some free APIs we can easily check whether an email is valid or not. One of the easiest way to check whether an email address is valid is to use PHP’s filter_var() function.Example 1:The following method can only check if the format is a valid email format. In this, we cannot check whether the format actually exits or not.PHP<?php $email1 = "[email protected]"; $email2 = "gfg.com"; function…