How to Access Offline Mails??

Outlook is the program which many people use but it is part of MS Office and therefore expensive. Probably the best free program is Mozilla Thunderbird. It has all the mail functions of Outlook but does not have the calendar/scheduling features (which most people don't want anyway). It is available in many languages and there is probably a version in your language. You can read more about it here: http://support.mozillamessaging.com/en-US/kb/Thunderbird-FAQ