This is about mailboxes, Kieran?
 
If so, Thunderbird did, and still does, used the mbox format; so nothing has changed there.
 
Frankly, since Pegasus can handle mbox, as well as its own native format, I'd don't know I'd even bother to convert.  I think I'd make a copy of the folder/s I wanted to move--you'll find it/them in:
 
C:/Kieran/Application Data/Thunderbird/Profiles/<Some random number>/Mail/Local Folders
 
After that, I'd make a new mailfolder inside Pegasus's GUI and choose "Unix" format.  Pegasus will then give that file a name consisting of a (random?) number and the file extension .MBX.  If you rename your mbox file to the same name and drop it into the same place in the hierarchy, on the C: drive where the mailfolder resides, it will then over-write it, and next time you open the program you'd see the mails there.  From there you could use drag-and-drop within the program's GUI to move the mails.
 
But go with the converter, if you find it easier.  I haven't used Dawn, but it seems to be what most people use.  The Thunderbird format hasn't changed, so there's no problem there.
 
 
        <p>This is about mailboxes, Kieran?</p><p>&nbsp;</p><p>If so, Thunderbird did, and still does, used the mbox format; so nothing has changed there.</p><p>&nbsp;</p><p>Frankly, since Pegasus can handle mbox, as well as its own native format, I'd don't know I'd even bother to convert.&nbsp; I think I'd make a copy of the folder/s I wanted to move--you'll find it/them in:</p><p>&nbsp;</p><p>C:/Kieran/Application Data/Thunderbird/Profiles/&lt;Some random number&gt;/Mail/Local Folders
</p><p>&nbsp;</p><p>After that, I'd make a new mailfolder inside Pegasus's GUI and choose "Unix" format.&nbsp; Pegasus will then give that file a name consisting of a (random?) number and the file extension .MBX.&nbsp; If you rename your mbox file to the same name and drop it into the same place in the hierarchy, on the C: drive where the mailfolder resides, it will then over-write it, and next time you open the program you'd see the mails there.&nbsp; From there you could use drag-and-drop within the program's GUI to move the mails.</p><p>&nbsp;</p><p>But go with the converter, if you find it easier.&nbsp; I haven't used Dawn, but it seems to be what most people use.&nbsp; The Thunderbird format hasn't changed, so there's no problem there.
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