How to Check if an Email Address is Valid and Exists
      How to Check if an Email Address is Valid and Exists   How do you know if an email address exists or not? The easy option  would be that you send a dummy mail to that email address, wait for an  hour or so and if your message bounces, it is very likely that the  particular email address does not exist. The approach works but wouldn’t  it be nice if you could check any email address instantly without even  sending that test message?     The other slightly technical option to verify an email address  is by querying the mail server. You connect to the mail server through telnet ( see video ),  enter your email address and the other email address that you are  trying to verify. If the server response is an error code, the email  address is probably not valid.   How to Check Email Addresses Instantly  Let me share an extremely simple method for checking if an email address is valid and exists or not.  Go  to the login page of the email service and pretend that you no longer  remember ...