Migrating Mail - Cannot archive all email

Hi,

I am trying to migrate my mail from snow leopard on an old macbook to Lion on a new 2012 13" Macbook Pro

I am using apple mail.

When I attempt to archive my gmail or other accounts the .mbox created does not contain all the emails.

Am I doing something wrong. I have also attempted to create smart mailboxes and archive them, but this does not work either.

This should be very simple, but is causing me all sorts of problems.


Please help.....soon....this is driving me up the wall

 

Thanks for responding Brian, I found the issue

1. I had to rebuild the mailbox
2. It also seems the archive and subsequent import process de-duplicates your mail

It all seems fine now