POP/IMAP not working after update RC5 -> 1.0.2

[fm4]

Hi there,

emailing is not working anymore after I updatet from rc5 to 1.0.2. Neither the Webmailer nor Thunderbird are able to get a connection - I think the login is the problem.

tail /var/log/mail.log says:
pop3d-ssl: Connection, ip=[::ffff:XX.XX.XX.XXX]
pop3d-ssl: user@domain.net: chdir(/var/mail/virtual/domain.net/user) failed!!
pop3d-ssl: error: Permission denied
pop3d-ssl: LOGIN FAILED, user=user@domain.net, ip=[::ffff:XX.XX.XX.XXX]
pop3d-ssl: authentication error: Permission denied

I would be very glad if someone can help me out with this.

Thanks
fm4