[CentOS] Dovecot under CentOS-6

I've been running dovecot on a CentOS-5.7 server. Now I'm moving over to another server running CentOS-6.2. I thought I was running dovecot on the new server, but in fact there was an error during the setup, with the result that incoming mail finished up in /var/spool/mail/ rather than in ~/Maildir , where I wanted it to go.

Now I'm wondering if there is some way that I can re-direct the mail in /var/spool/mail/<mymbox> so that it goes through the system as though it were just arriving? I mean, so that it gets distributed into the correct folders under ~/Maildir , as specified in .procmailrc .

Any suggestions gratefully received.