I'm trying to migrate an existing mailserver running with Debian 3.0 to another machine running Debian 4.0. The first is running sendmail, uw-imapd, ipop3d and the second is running sendmail and dovecot-imapd/popd.
I've copied (rsync -avv) all the mails of the users in the /var/mail directory from one server to the other, but when the users are logged with pop account they retrieve all the mails from the beggining as the mailbox were a new one.
My question is how can I make the pop users not to download all the mails from their mailbox but only the new ones.
p.s all the mails in the mbox-es are marked as RO.
Thanks in advance.