Offline Emails with MailStore
To do so there is a freeware solution available called MailStore for email archiving and backup. It provides powerful functions to download all of your email data from major email service providers like Gmail, Yahoo, Windows Live/Hotmail, and any other service you can connect to via POP or IMAP. Also, it can backup your Outlook, Microsoft Exchange, Thunderbird and Mozilla SeaMonkey data. Moreover it has the ability to directly store the archived data into hard media (CD/DVD, Flash Disk or Hard Disk). MailStore then split up your archives and shove the files itself into the media. All these functions stated above can be started from the menu on the main window.
To download the MailStore :
Some Features of MailStore
After you install (or unzip) the software to a folder, you have to select the email accounts that you want to archive. Those can be your Gmail accounts, Microsoft Exchange, your old Outlook PST files, Thunderbird and any other web email service that supports either IMAP or POP3.
The tool will pull your email messages from all these places into a central location. If you have a large mailbox, you may specify criteria to skip emails that are older than ‘n’ days. It skips the Spam and Junk folders by default but you may also manually specify any folders/labels that you wish to include (or exclude) from the backup.
There is a convenient search box allowing you to search all your email accounts from one place. You can copy the MailStore folder to your USB drive, or even your Dropbox folder, and access all the emails from anywhere, anytime. Since this is more of an email backup utility and not a full-blown email client, it cannot be used for replying or sending new emails.