"PING" Email Address

Open CMD

For this example lets try GMAIL

nslookup –type=mx gmail.com

You will get something like this:

gmail.com MX preference=30, exchanger = alt3.gmail-smtp-in.l.google.com
gmail.com MX preference=20, exchanger = alt2.gmail-smtp-in.l.google.com
gmail.com MX preference=5,  exchanger = gmail-smtp-in.l.google.com
gmail.com MX preference=10, exchanger = alt1.gmail-smtp-in.l.google.com
gmail.com MX preference=40, exchanger = alt4.gmail-smtp-in.l.google.com

Now lets connect to the mail server

telnet gmail-smtp-in.l.google.com 25
  Get acknowledge by saying Hello
HELO
Type your email address
mail from:<joe@doe.com>
Type the email address you want to test
rcpt to:<testemail@gmail.com>



You can also use this website:

http://verify-email.org/

 

Source: http://www.labnol.org/software/verify-email-address/18220/


Tagged under: network, email