# Pre-Configured Black lists

All of the pre-configured DNS black lists are enabled by default at the server level.

Name | Server | Query Domain | Type | TCP First
fiveten | * | blackholes.five-ten-sg.com | DNS | No
spamhaus | * | sbl.spamhaus.org | DNS | No
spamcop | * | bl.spamcop.net | DNS | No
ybl | * | ybl.megacity.org | DNS | No
visirelays | * | relays.visi.com | DNS | No
v6net | * | spammers.v6net.org | DNS | No

By default, the Server field contains a asterisk ( * ) for all default and new black lists. When an asterisk is entered, the default IMail Server DNS is used for black list queries. The default DNS server relays the DNS query to the DNS server for the black list.