Worked really well! Rated 4 out of 5 stars

I needed to export the emails 'sent messages' folder on an old email server to the 'sent messages' on the new email server. This was just the tool for the job, and it worked really well.It could've provided some info about how to import the file to an imap folder on an account (importing it to a local folder and then moving or copying the emails from there to the imap-folder you want), otherwise it was awesome!

This review is for a previous version of the add-on (2.8.0.2).