.eml or .msg (or .mbx imported via File | Import -> an mbox file) should work, as long as they are actually MIME or Outlook MSG format (Outlook will need to be installed for UR to process .msg files). If .eml / .msg is included at 'Tools | Options | Documents | File extensions to display in MIME viewer', the UR message viewer will be used to display the imported message in UR.
|