[Dovecot] The Status: header is forced

Hi,

I started testing dovecot for our next POP/IMAP server (nearing production state), and noticed that the Status: header is always added, with a value of 'O' or 'RO'. This happens in `lib-index/mbox/mbox-rewrite.c'. This does not seem to happen in the Maildir case.

Is the Status: header really needed in every case? This breaks mutt which displays mails with a 'O' flag instead of 'N'.

My dovecot is 0.99.10.4 (FreeBSD port), but the behavior is still the same in the CVS version.

olive