Suppose you are working on a computer using the internet, suddenly you found that there is no internet connection. It is a very common thing. But you have to check your emails for your work. Without the internet you cannot read emails.Now I am going to tell you How to Read, Compose or Even send Emails in Gmail while there is no internet connection (Offline). You can send emails. Whenever your computer gets connected to the internet all mails will be sent automatically.
So use this trick you need Google Chrome Browser. If you don't have it, Download it from the below link.
After installing Google Chrome, You have to login into your Gmail account.
Then you have to go Offline Gmail Setup Page .
Now on the top-right of that page, click on + ADD TO CHROME
Now a new window will open. In that window click on " Add "
Now click on LAUNCH APP
A new tab will open. On that page Select " Allow offline mail" and then click on " Continue ".
When your computer gets connected to the internet email will be sent automatically.