[exim] Transfer mails from server a to b

Hello,
I have got Debian 4.0 (Etch) with Exim 4.62 and Maildir format on my old
server. I have just set up a new server and I want to move all mails in my
Maildir folders to the Maildir folders on new server. Can I just move all
mails (with scp or ftp) from the old to the new server? If no what do I need
to do? Please help!

Regards,
--
Oliver