often the easiest way to migrate is for the users to use IMAP
mailboxes and copy all the emails from the exchange folders to the
imap box on the target server using their email clients.
Maildir uses the maildir format, and for automated migration, you
might want to try googling for 'exhange to maildir'.
Quoting Mohsen Pahlevanzadeh <moh...@pahlevanzadeh.org>:
Our customer has a mail server on Windows.i must to convert its database
to vpopmail & its mta to qmail.
Now, i have a question:
What's file name format for each mail in maildir storage?