Summary
mail-relay.ubc.ca has one IP number , which also has a corresponding reverse pointer.
mail-relay1.ubc.ca,
mail-relayd.ubc.ca,
mail-relay0.ubc.ca,
mail-relayc.ubc.ca,
mail-relayb.ubc.ca and at least three other hosts point to the same IP.
ubc.ca,
ubc.edu,
bccrc.ca,
it.ubc.ca,
ams.ubc.ca and at least 100 other hosts use this as a mailserver.
lb.mail-relay.ubc.ca,
mr1.mail-relay.ubc.ca,
mr4.mail-relay.ubc.ca and
mr6.mail-relay.ubc.ca are subdomains to this hostname.
ubc.ca is delegated to four nameservers, however one delegated nameserver is missing in the zone. All of them are on different IP networks. Incoming mail for
ubc.ca is handled by one mailserver at
ubc.ca themselves.
ubc.ca has one IP number.
mail-relay.ubc.ca is hosted on a server in Canada.