Support sending emails with inline images
Add a right click menu to add inline images in emails
Add a new exit signal and use it for saving data
Make loading MIME attachment data more efficient
Add more options to the email edit context menu
Add a non-functioning menu for exporting message data
Make more progress on exporting message data
Export message details to a KPM file
Improve the functionality of UtilityFileChooser
Finish basic message data importing and exporting
Move errors and fix loading local inline image files
Add more unit test cases
HTML escape file names in inline images
Finish implementing message importing and exporting
Check required package compatibility on startup
Improve the logic for checking requirements on startup
Add, refactor, and document unit tests
Fix a bug when connect to the SMTP server over SSH
Add export logs and don't merge data when importing
Use the mailer prefix and fix a typo in a log message