Dvorak is our primary machine. It is hosted in Telehouse, courtesy of gradwell.com.
Elgar is our secondary machine. It is a secondary MX and nameserver, and can act as a web server in the event that dvorak goes down. It also does our backups.
Bizet is an additional machine which previously provided primary mail service. It is occasionally used to test new packages before they are installed on the other servers. It may be retired at some point in the future.