Detecting unreaded mails in Maildir

I like to detect unreaded mails in Maildir mailboxes. The subfolder "new" only content mails that are not already pulled from an MUA. But I want the unreaded mails within INBOX (no virtual subdirs). Any suggestions how this can be implemented?

PS: I do not enter the raw mail!

Using Debian Squeeze with Postfix and Dovecot (POP, IMAP).

Solution 1:

You use Dovecot, so each file in the maildir folder that has :2,S near the end of the file name means it has been flagged as "Seen" or "Read".

More useful info about Maildir formats:

http://wiki.dovecot.org/MailboxFormat/Maildir

http://cr.yp.to/proto/maildir.html

An example file name from my Maildir: 1324304849.M312689P14620.subdomain.domain,S=24816,W=25415:2,Sa