Gmail is the electronic mailing site which is used worldwide and it it is the most used mailing site ever, as I am also an user of gmail I can share my views about it it is very fast and easy to use it is very convienient email site, and the registration process is very simple and it is pretty much safe and you can use gmail app also for accessing your mails, all the mails are filtered and a very great experince is given to the users I recommend the use of gmail because it is free to use and you can send any type of files through it.