mx.sudjam.com has one IP number , which also has a corresponding reverse pointer. mx.thezit.com and mx.commwerks.com point to the same IP. op-3.com, emreg.com, hhtat.com, bbwxtc.com, picrow.com and at least 100 other hosts use this as a mailserver. sudjam.com is delegated to three nameservers, however one extra nameserver is listed in the zone. All nameservers are at sudjam.com themselves. Two of them are on the same IP network. Incoming mail for sudjam.com is handled by four mailservers also at sudjam.com. All of them are on the same IP network. sudjam.com has one IP number. mx.sudjam.com is hosted on a server in United States.