MailStore Home Version 4.1 is now available. Emails can be archived from Microsoft Outlook 2010 (including x64) and exported or restored back to the application.
In addition, IMAP support has been improved: The email list now displays the recipient instead of the sender of sent emails which were archived via IMAP. The only requirement is the setup of the sent objects folder in the IMAP archiving profile. The direction (i.e. sent/received) of emails already existing in the archive can be changed retroactively using the context menu of the email list.