go
mta1-f.biz.level3.mail.vip.mud.yahoo.com has one IP number , which also has a corresponding reverse pointer. mail2.itc-inc.org, mx1.biz.mail.yahoo.com and mx1.biz.mail.yahoo.com.1stchoicecondo.com point to the same IP. sorousharani.com use this as a mailserver. mta1-f.biz.level3.mail.vip.mud.yahoo.com is hosted on a server in United States.

mta1-f.biz.level3.mail.vip.mud.yahoo.com
a records
 
+ 4.79.181.18 4.79.181.0/24 AS14780 -
+ --- -
ip numbers of host
4.79.181.18
ptrs of ip numbers
mta1-f.biz.level3.mail.vip.mud.yahoo.com
ip numbers using ptr to this host
4.79.181.18
hostnames sharing ip with a-records
mail2.itc-inc.org
mx1.biz.mail.yahoo.com
mx1.biz.mail.yahoo.com.1stchoicecondo.com
domains using this as mailserver
sorousharani.com
domains using this as mailserver under another name
1stchoicecondo.com
accenttileinc.com
alkitab.com
amideal.com
arubaaloe.com
brandsplace.com
butterflykoi.com
buyelo.com
cdlabel.com
commercialtrade.com
countryovens.com
eaglefield.net
empowher.net
familyofchristchurch.org
firstshare.com
furl.net
greatlakesprint.com
hawkmedia.com
itc-inc.org
keskinen.org
kidsneedtobekids.org
kriskar.com
littlefish.org
manning.com
millenniumcrystal.com
money4data.com
muskokamedia.com
myempire.biz
onnurisa.org
osmonics.biz
pasadenadentistry.com
pipburbank.com
qualifiedinteriors.com
rfideas.com
salttdevelopment.com
srgsystems.com
taaccl.org
taku105.com
tlcstudents.com
tpohara.com
warrantynet.com
workforcescheduler.com
workforcescheduler.net
nameservers missing in parent delegation
ns6.yahoo.com
ns8.yahoo.com