[Dovecot] Maildir handling

Hi,

we just setup a new mailserver for our company with some sieve filtering in place. Everything works as expected but there is one flaw. We setup the per user sieve filters in files within the users mailbox maildir as follows:

lrwxrwxrwx 1 mail mail 21 Jan 13 17:20 .dovecot.sieve -> sieve/phpscript.sieve

This link is actually picked up by dovecot and being announced as an IMAP folder which gives an error in certain MUAs as they try to access it.

Is there a way to let dovecot check if the link is really a maildir, so lets say a directory with a maildirfolder file within it? Or just to hide this link from dovecot so its not advertised as an IMAP folder?

Greetings, Sascha