Incoming mail for alumni.ubc.ca is handled by one mailserver at ubc.ca. alumni.ubc.ca has four IP numbers. All of them are on the same IP network. rfa.ca, cvic.ca, castanet.ca, marmots.org, motifdvd.com and at least 26 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 share mailservers with this domain. www.alumni.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 also at ubc.ca. ubc.ca has one IP number. alumni.ubc.ca is hosted on four servers in Canada.