Why was /var/lib/imap/mailboxes.db there? Did you have a previous version of cyrus-imapd manually installed (i.e not via rpm)?
I have found out that mailboxes.db are created by postfix after I
issued /etc/rc.d/init.d/postfix restart. It will recreate that even
if I remove it.
You have a strange setup. There's *nothing* in the posftix rc script that comes with mandrake that references mailboxes.db, and nothing in any of the postfix binaries references mailboxes.db
Bye -- Luca Olivetti Wetron Automatización S.A. http://www.wetron.es/ Tel. +34 93 5883004 Fax +34 93 5883007