New created maildir is owned by wrong user

[osterhase]

Hey there!

I'm having a weird problem and not able to sort it out. Maybe someone can give me a hand here:

ISPConfig: (recently updated) 3.0.3.3 -> 3.0.4
OS: Debian Squeeze

Problem:
- When a mail-account is created it is not owned by vmail-user but by root
- When the mail-account is updated (e.g. quota / spamfilter change) the owner of the maildir is set properly.

/var/vmail/[domain]/[mailadresse-folder <- owned by root]/[subdirectories <- owned by vmail]

Mailserver is Dovecot - mailuser is set in /etc/dovcot.conf (at the end of config file).

Any suggestions would be helpful.

Best regards