How find if email is fake or real address

How to Verify an Emails, Prevent your Google Mail from Getting Rejected as Spam

1.How to Check if an Email Address is Valid and Exists

2.Get Extra Email Addresses for your Gmail Account [Google Apps]

3.Using Outlook.com with your own Web Domain

4.How to Share your Email Address Online in a Safe Way

all have to verify if a given email address is real or fake for hacking issues 1. Enable telnet in Window 2. command prompt, type the this nslookup  –type=mx gmail.com

for query name servers for that domain.

Then enter to see the gmail address

Its not hard if you know how to