You can even use portable version of the program. Step 1: Download and install MailStore on your computer where you want to create your centralized backup. The application is lightweight and supports any POP3 and IMAP mailbox along with popular desktop email clients. MailStore Home is a freeware that creates an archive of all your mail on your computer from different programs, mailboxes and webmail services. Today, we will take a look at a cool software called MailStore Home, that can backup all your email accounts, be it Gmail or Windows Live Hotmail, to your PC. Hence backing them up offline on your computer is recommended. While most of the mail providers ensure that your email is backed up and safe in the cloud, nothing is for certain. Your email account is definitely an important asset in this information age, and you really can’t afford to loose the data associated with it.