Description:

OfflineIMAP is a tool to simplify your e-mail reading. With
OfflineIMAP, you can read the same mailbox from multiple computers.
You get a current copy of your messages on each computer, and changes
you make one place will be visible on all other systems. For instance,
you can delete a message on your home computer, and it will appear
deleted on your work computer as well. OfflineIMAP is also useful if
you want to use a mail reader that does not have IMAP support, has
poor IMAP support, or does not provide disconnected operation.