Gmail is Google's e-mail service. Users can access Gmail as HTTPS web mail, POP3 or IMAP4 protocol. Gmail was launched with an invitation system in Beta form on April 1, 2004 and became available to the public on February 7, 2007 although it still has Beta status. Wikipedia
Gmail is an easy-to-use email application that saves you time and keeps messages safe. Directly receive messages via mobile phones registered with gmail so you can send and receive messages for free only requires an internet connection.