mail-relay1.ubc.ca

Domain

mail-relay1.ubc.ca has one IP number , which also has a corresponding reverse pointer. mail-relay.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. eos.ubc.ca, ocgy.ubc.ca, pleiades.org and earth.geology.ubc.ca use this as a mailserver. 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-relay1.ubc.ca is hosted on a server in Canada.

Base	Record	Name		IP	Reverse	Route	AS
mail-relay1.ubc.ca	a			137.82.224.74 Canada	mail-relay0.ubc.ca	137.82.0.0/16 University of British Columbia (UBC)	AS271 BCNET-BC-AS BCNET-BC Network
					mail-relayb.ubc.ca
					mail-relay.ubc.ca
					mail-relay2.ubc.ca
					lb.mail-relay.ubc.ca
					-
					mail-relayc.ubc.ca
					mail-relaya.ubc.ca
					mail-relayd.ubc.ca
ubc.ca	a			137.82.132.2 Canada	(none)
	ns-soa	hub.ubc.ca		137.82.1.1 Canada	dns1.ubc.ca
					-
					dns.ubc.ca
	ns	timon.dit.umontreal.ca		132.204.3.103 Canada		132.204.0.0/16 University of Montreal (NET-UMTLNET)	AS376 RISQ-AS RISQ AS Number
		dns3.ubc.ca		142.103.1.1 Canada	dns2.ubc.ca	142.103.0.0/16 University of British Columbia (UBC1)	AS271 BCNET-BC-AS BCNET-BC Network
		dns3.ubc.ca		142.103.1.1 Canada	-	142.103.0.0/16 University of British Columbia (UBC1)	AS271 BCNET-BC-AS BCNET-BC Network
		effraie.cc.umontreal.ca (only in delegation)			(none)		?
		hub.ubc.ca		137.82.1.1 Canada	dns1.ubc.ca	137.82.0.0/16 University of British Columbia (UBC)	AS271 BCNET-BC-AS BCNET-BC Network
					-
					dns.ubc.ca
	mx	10	mail-relay.ubc.ca	137.82.224.74 Canada	mail-relay0.ubc.ca
					mail-relayb.ubc.ca
					-
					mail-relay2.ubc.ca
					lb.mail-relay.ubc.ca
					mail-relay1.ubc.ca
					mail-relayc.ubc.ca
					mail-relaya.ubc.ca
					mail-relayd.ubc.ca

dot

	ip numbers of host

			ip numbers using ptr to this host
				hostnames sharing ip with a-records
					domains using this as mailserver
						domains using this as mailserver under another name
							ptrs of ip numbers

137.82.224.74	X	X	X
earth.geology.ubc.ca					X	X
eos.ubc.ca					X	X
lb.mail-relay.ubc.ca				X			X	X
mail-relay.ubc.ca				X			X	X
mail-relay0.ubc.ca				X			X	X
mail-relay2.ubc.ca				X			X	X
mail-relaya.ubc.ca				X			X	X
mail-relayb.ubc.ca				X			X	X
mail-relayc.ubc.ca				X			X	X
mail-relayd.ubc.ca				X			X	X

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