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Sorry, we have no information about dp1.lawpga.com. lawpga.com is delegated to two nameservers, however both delegated nameservers are missing in the zone and three other nameservers are listed. Some of them are on the same IP network. Incoming mail for lawpga.com is handled by two mailservers at lawpga.com themselves. They are on different IP networks.

lawpga.com
ns-soa records
ns1.meganameservers.com
+ 216.251.32.100 216.251.32.0/20 AS14116 -
+ --- -
ns records
ns1.covad.net
+ 216.251.45.139 216.251.32.0/20 AS14116 -
+ --- -
ns2.covad.net
+ 64.29.158.54 64.29.144.0/20 AS30447  
+ ---  
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
mail1.lawpga.com
+ 12.4.213.148 12.0.0.0/9 AS7018 -
+ --- -
mail.lawpga.com
+ 208.118.165.74 208.118.160.0/19 AS22925  
+ ---  
ip numbers using ptr to this host
216.142.110.50
nameservers missing in parent delegation
ns1.meganameservers.com
ns2.meganameservers.com
ns3.meganameservers.com
nameservers missing in zone
ns1.covad.net
ns2.covad.net