G-mail providing the offline messenger name GEAR .you have to download and install it.after that go and change in your mail account settings.
step 1 :go to settings in your mail accout.
step 2 :click offline option.there is two option button provide for enable or disable the offline mail.in that choose offline mail box for this computer.
step 3 :and hit save changes.
few seconds later that gear offline gmail software will ask you to save.you have to dowload and install it.after installation process finishes,it generate that process,to copy all mail and chats to your computer.it provide small shortcut for the offline mail.........it take some times for copying all the content of the mail from your gmail account that time dont signoff the mail account.because it can cancel the process.you should wait till complete of that process.you can use this function in offline .....use it and enjoy
