mx01.pathcom.com has one IP number , which also has a corresponding reverse pointer. mail.citenet.com and mx01.mx.citenet.net point to the same IP. cez.com, dsat.ca, btv.com, upak.net, moir.com and at least 100 other hosts use this as a mailserver. pathcom.com is delegated to three nameservers, however all three delegated nameservers are missing in the zone and three other nameservers are listed instead. There are three duplicated IP numbers. Some of them are on the same IP network. Incoming mail for pathcom.com is handled by two mailservers at pathcom.com themselves. They are on the same IP network. pathcom.com has one IP number. mx01.pathcom.com is hosted on a server in Canada.