[MlMt] Seen/read status not preserved when importing local folder

[Sherif Soliman]

Hi Benny and all,

I'm helping a friend import her old email into MailMate. She has some 
inboxes of exported messages (On My Mac) from Mail.app that she wanted 
to import into MailMate.

The inboxes have lots of unread as well as read messages. However, when 
we imported those inboxes into MailMate (using File > Import Messages... 
 > Select folder + Use destination for all messages), all the imported 
emails were unread.

Why is the seen/unseen status lost? Is there a way to preserve the 
read/unread status of all those messages when importing?

Thanks.

Sherif