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mail.lubar.com has one IP number , but the reverse is 74-203-207-185.static.twtelecom.net. lubar.com is a domain controlled by three nameservers at meganameservers.com. Two of them are on the same IP network. Incoming mail for lubar.com is handled by two mailservers at appriver.com. They are on the same IP network. lubar.com has one IP number. mail.lubar.com is hosted on a server in United States.

mail.lubar.com
a records
 
+ 74.203.207.185 74.203.207.0/24 AS4323 74-203-207-185.static.twtelecom.net
+ --- 74-203-207-185.static.twtelecom.net

lubar.com
a records
 
+ 216.251.43.98 216.251.32.0/20 AS14116  
+ ---  
ns-soa records
ns1.meganameservers.com
+ 216.251.32.100 216.251.32.0/20 AS14116 -
+ --- -
ns records
ns2.meganameservers.com
+ 216.251.32.101 216.251.32.0/20 AS14116 -
+ --- -
ns3.meganameservers.com
+ 64.29.144.65 64.29.144.0/20 AS30447 -
ns1.meganameservers.com
+ 216.251.32.100 216.251.32.0/20 AS14116 -
mx records
server508.appriver.com
+ 72.32.252.5 72.32.0.0/16 AS33070 -
+ --- -
server509.appriver.com
+ 72.32.252.6 72.32.0.0/16 AS33070 -
ip numbers of host
74.203.207.185
ptrs of ip numbers
74-203-207-185.static.twtelecom.net