go
mail.putana.cz has one IP number , but the reverse is unknown-3877.agava.net. ns.ston.ru, magdalina.org, mail.magdalina.ru, mail.magdalina.org, mail.popadalovo.info and at least three other hosts point to the same IP. putana.cz use this as a mailserver. putana.cz is a domain controlled by two nameservers at public-ns.com. They are on different IP networks. Incoming mail for putana.cz is handled by two mailservers at putana.cz themselves. They are on different IP networks. putana.cz has one IP number. mail.putana.cz is hosted on a server in Russian Federation even though the hostname implies Czech Republic.

mail.putana.cz
a records
 
+ 89.108.73.159 89.108.72.0/22 AS43146 unknown-3877.agava.net
+ --- unknown-3877.agava.net

putana.cz
a records
 
+ 88.208.33.69 88.208.32.0/20 AS39572  
+ ---  
ns-soa records
ns5.public-ns.com
+ 207.226.173.74 207.226.0.0/16 AS3491 -
+ --- -
ns records
ns5.public-ns.com
+ 207.226.173.74 207.226.0.0/16 AS3491 -
+ --- -
ns6.public-ns.com
+ 69.31.128.0 69.31.128.0/23 AS26627 -
mx records
mail.putana.cz
+ 89.108.73.159 89.108.72.0/22 AS43146 unknown-3877.agava.net
+ --- unknown-3877.agava.net
mail2.putana.cz
+ 69.31.128.188 69.31.128.0/23 AS26627 mx2.advancedhosters.com
+ --- mx2.advancedhosters.com
IP numbers of host
89.108.73.159
PTRs of IP numbers
unknown-3877.agava.net
Host names sharing IP with A records
*.intimuslugi.org
*.magdalina.org
magdalina.org
mail.individualki.org
mail.intimuslugi.net
mail.intimuslugi.org
mail.magdalina.org
mail.magdalina.ru
mail.popadalovo.info
ns.ston.ru
Domains using this as mail server
putana.cz
Domains using this as mail server under another name
individualki.org
intimuslugi.net
intimuslugi.org
magdalina.org
magdalina.ru
popadalovo.info