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Sorry, we have no information about ev1s-67-15-218-17.theplanet.com. theplanet.com is a domain controlled by two nameservers at theplanet.com themselves. They are on the same IP network. Incoming mail for theplanet.com is handled by two mailservers also at theplanet.com. They are on different IP networks. theplanet.com has one IP number.

theplanet.com
a records
 
+ 70.87.6.117 70.84.0.0/14 AS21844  
+ ---  
ns-soa records
ns1.theplanet.com
+ 207.218.247.135 207.218.192.0/18 AS21844 -
+ --- -
ns records
ns1.theplanet.com
+ 207.218.247.135 207.218.192.0/18 AS21844 -
+ --- -
ns2.theplanet.com
+ 207.218.223.162 207.218.192.0/18 AS21844 -
mx records
mx01.theplanet.com
+ 70.87.6.99 70.84.0.0/14 AS21844 -
+ --- -
mx02.theplanet.com
+ 209.85.97.106 209.85.0.0/17 AS21844 -
ip numbers using ptr to this host
67.15.218.17