go
mail.buybank.com has one IP number. mail.qzi.net, mail.uzza.com, mail.noxa.com, mail.tg4u.com, mail.nioi.net and at least 100 other hosts point to the same IP. buybank.com use this as a mailserver. buybank.com is a domain controlled by two nameservers at cypack.com. They are on the same IP network. Incoming mail for buybank.com is handled by one mailserver at buybank.com themselves. buybank.com has one IP number. mail.buybank.com is hosted on a server in Korea.

mail.buybank.com
a records
 
+ 202.31.186.55 202.31.186.0/24 AS3786  
+ ---  

*.buybank.com
a records
 
+ 202.31.187.154 202.31.187.0/24 AS3786  
+ ---  

buybank.com
a records
 
+ 202.31.187.154 202.31.187.0/24 AS3786  
+ ---  
ns-soa records
ns4.cypack.com
+ 202.31.186.55 202.31.186.0/24 AS3786  
+ ---  
ns records
ns3.cypack.com
+ 202.31.186.53 202.31.186.0/24 AS3786  
+ ---  
ns4.cypack.com
+ 202.31.186.55 202.31.186.0/24 AS3786  
mx records
mail.buybank.com
+ 202.31.186.55 202.31.186.0/24 AS3786  
+ ---  
ip numbers of host
202.31.186.55
hostnames sharing ip with a-records
mail.8949.net
mail.aflower.net
mail.aisadesign.com
mail.arap.net
mail.artmobil.com
mail.asiacasino.net
mail.baocongantphcm.com.vn
mail.bartercorp.com
mail.biotv.net
mail.bjkorea.com
mail.busy4you.com
mail.buydomain.net
mail.caption.net
mail.careerpath.net
mail.cgisystems.com
mail.compustar.net
mail.crazyenglish.co.kr
mail.cybercollege.net
mail.cybers.net
mail.cyberspace.net
mail.cymax.net
mail.dbmedia.net
mail.dc4you.com
mail.designersbox.com
mail.dnshop.net
mail.enail.net
mail.enamel.net
mail.f1net.net
mail.facer.net
mail.fireball.net
mail.freesia.net
mail.geosoft.net
mail.gobeijing.net
mail.goldfox.net
mail.googelmaps.com
mail.hanism.net
mail.happywithyou.net
mail.himal.net
mail.htel.net
mail.i-league.com
mail.infoage.net
mail.itedu.net
mail.jme.co.kr
mail.kayjaydesign.com
mail.kobra.net
mail.koreanfolkvillage.net
mail.krieg.net
mail.loveis.net
mail.mapsgoogle.com
mail.monitormall.com
mail.mygood.net
mail.myinfo.net
mail.netas.net
mail.nicole.net
mail.nioi.net
mail.noxa.com
mail.officetel.net
mail.poctan.net
mail.qzi.net
mail.realtyasia.net
mail.realtyauction.net
mail.safebiz.net
mail.safuneral.com
mail.sexclinic.net
mail.skylife.com
mail.sorashop.com
mail.spiritcomm.com
mail.srobot.com
mail.ssara.net
mail.starstar.net
mail.tg4u.com
mail.topmusic.net
mail.toweb.net
mail.ubafrance.com
mail.uinet.net
mail.uzza.com
mail.voicesoft.net
mail.webzip.net
mail.wh4u.com
mail.xcity.net
mail.xn--2i4bq6h.net
mail.xn--2q1b805d.net
mail.xn--2q1bw78a3kd.net
mail.xn--352bm57a.net
mail.xn--3e0b04llmgmuu.net
mail.xn--3e0b497a4rg.net
mail.xn--6e0b287a.net
mail.xn--939a48w.net
mail.xn--9d0bo12a.net
mail.xn--9d0bo79br2atj.net
mail.xn--9p4b13e.net
mail.xn--9p4bq4s.net
mail.xn--9p4bqqo2i.com
mail.xn--9p8b1d.com
mail.xn--b02bl1ki8g.net
mail.xn--bk1b878a.net
mail.xn--eq4b25q.net
mail.xn--hc0b48w.net
mail.xn--hg4bo4shnfzvd.net
mail.xn--hy1b58tbkau66b.net
mail.xn--hz2bi0k.net
mail.xn--oj4b23hzra713b.net
mail.xn--oj4bn00b.net
mail.xn--ok0b.net
mail.xn--ok0bm19anle.net
mail.xn--om3b13f11ee0a.net
mail.xn--or3bn9pm4f.net
mail.xn--s80b910a.net
mail.xn--vb0bp64d.net
mail.xn--vf4bi6ihpp.net
mail.xn--vj4b.net
mail.xn--vj5b27s.net
mail.xn--vk1bq64d.net
mail.xn--vy7b15b.net
mail.xn--zf4b17f.net
mail.xn--zf4bt3h.net
mail.xn--zf4bt7f.net
mail.yoobu.com
mail.yourdomain.net
mail.zetaworks.com
ns4.cypack.com
domains using this as mailserver
buybank.com
domains using this as mailserver under another name
enamel.net
monitormall.com
sexclinic.net
webzip.net
wh4u.com