Since Hetzner offered some interesting root servers theses days I have decided to retire mephisto.
During this switch I also refactored the server configuration. The whole virtual mail setup is now based on LDAP only. No need for SQL and I fully removed the kerberos stuff as this simply to blown for a small to midsize server. I really appreciate any feedback on the whole configuration documentation.
After some inspiring discussion I enabled the comment system now. It is moderated so your comments will only show up after I have read through them.
Greets, Mueli