go
sextury-mx1.isprime.com has one IP number , which also has a corresponding reverse pointer. mail.21sextury.com, mail.21sexturytv.com, mail.viztukorlakopark.hu and mail.21sexturyonline.com point to the same IP. isprime.com is a domain controlled by two nameservers at isprime.com themselves. They are on different IP networks. Incoming mail for isprime.com is handled by one mailserver also at isprime.com. isprime.com has one IP number. sextury-mx1.isprime.com is hosted on a server in United States.

sextury-mx1.isprime.com
a records
 
+ 76.9.30.25 76.9.30.0/24 AS23393 -
+ --- -
+ --- mail.21sextury.com

isprime.com
a records
 
+ 66.230.129.74 66.230.128.0/18 AS23393  
+ ---  
ns-soa records
ns.isprime.com
+ 76.9.7.3 76.9.7.0/24 AS23393  
+ ---  
ns records
ns.isprime.com
+ 76.9.7.3 76.9.7.0/24 AS23393  
+ ---  
ns2.isprime.com
+ 66.230.160.1 66.230.128.0/18 AS23393 -
+ --- -
mx records
mail.isprime.com
+ 66.230.130.130 66.230.128.0/18 AS23393 lexus.isprime.com
+ --- lexus.isprime.com
ip numbers of host
76.9.30.25
ptrs of ip numbers
mail.21sextury.com
sextury-mx1.isprime.com
ip numbers using ptr to this host
76.9.30.25
hostnames sharing ip with a-records
mail.21sextury.com
mail.21sexturyonline.com
mail.21sexturytv.com
mail.viztukorlakopark.hu
domains using this as mailserver under another name
21sextury.com
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