How to verified email address? A way to prevent scam, spam, etc

How to Verify an Email Address?

How do you verify if a given email address is real or fake? Well an obvious solution is that you send a test mail to that email address and if your message doesn’t bounce, it is safe to assume* that the address is real.


[*] Some web domains may have configured a catch-all email address meaning that messages addressed to a non-existent mailbox will not be returned to the sender but in most cases, such email messages will bounce.

So how can we verify that:
Check here were the author (Amit Agarwal) show how to verify the email...
1. http://www.labnol.org/software/verify-email-address/18220/
2. http://lifehacker.com/5697360/how-to-verify-if-an-email-address-is-real-or-fake