Google has willed that this is not a problem with Gmail and this has enabled Offline Google Mail, a Chrome application through which you access your emails on Gmail without being connected to the Internet.
By the appearance of Google Chrome, you could say that it has nothing to do with Gmail. Offline Google Mail interface uses a original tablets that is also valid for use with the mouse.
The application retains almost all the original features of Gmail in the treatment of messages, but the interface is not welcome to use screening tools to modify the configuration or send or receive.
Thus, Offline Google Mail can be very useful for users of Google Chrome and Gmail.