because it simple...

find gmail email address, verify google email

Main content page - verify google email.Along with ability to search ip addresses we introduce also option to check validity of emails with our Email Address Lookup. Email lookup (check email) is advanced web utility that will perform free email address search and make a couple test to verify email address.
An email hosting service is an Internet hosting service that runs email servers. Email hosting services usually offer premium email at a cost as opposed to advertising supported free email or free webmail.
Some infrastructure situations have to use static addressing, such as when finding the Domain Name System host that will translate domain names to IP addresses. Static addresses are also convenient, but not absolutely necessary, to locate servers inside an enterprise.
And this is the basis for their primary use. Dynamic websites may deliver (slightly) different content depending upon what browser is being used. For example, if you use Firefox and go to download Firefox via a Google Adsense referral advert, the resulting page will say words to the effect of "You have already downloaded Firefox; why not download the Google Toolbar instead?".
The first part of the address, the email user name, identifies a unique user on an email server. The @ symbol separates the user name from the host or server name. The host name uniquely identifies the server computer and is the last part of the Internet email address.