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Incoming mail for neptune.sr.net is handled by two mailservers at sr.net. They are on the same IP network. neptune.sr.net has one IP number , which also has a corresponding reverse pointer. klm.sr, ptc.sr, isgroup.sr, ursa.sr.net, surimail.sr and at least 15 other hosts share mailservers with this domain. sr.net is a domain controlled by two nameservers also at sr.net. They are on the same IP network. Incoming mail for sr.net is handled by one mailserver also at sr.net. sr.net has one IP number. neptune.sr.net is hosted on a server in Suriname.

neptune.sr.net
a records
 
+ 200.1.159.30 200.1.156.0/22 AS27775 -
+ --- -
mx records
ironport.sr.net
+ 200.1.159.51 200.1.156.0/22 AS27775 -
+ --- -
solar.sr.net
+ 200.1.157.10 200.1.156.0/22 AS27775 -

sr.net
a records
 
+ 200.1.156.15 200.1.156.0/22 AS27775  
+ ---  
ns-soa records
 
+   AS?  
+ ---  
ns records
ns5.sr.net
+ 190.98.1.28 190.98.0.0/19 AS27775 -
+ --- -
ns6.sr.net
+ 190.98.1.30 190.98.0.0/19 AS27775 -
mx records
parbo-tlsmx.sr.net
+ 200.1.159.57 200.1.156.0/22 AS27775 -
+ --- -
ip numbers of host
200.1.159.30
ptrs of ip numbers
neptune.sr.net
ip numbers using ptr to this host
200.1.159.30
mailservers used by this domain
ironport.sr.net
solar.sr.net
domains sharing mailservers
corporate.sr
fourpoints.sr
hakrinbank.sr
iapetus.sr.net
ironport.sr.net
ironport1.sr.net
isgroup.sr
klm.sr
mercury.sr.net
orion.sr.net
paradisoinn.sr
pluto.sr.net
ptc.sr
saturn.sr.net
sirius.sr.net
solar.sr.net
surimail.sr
uranus.sr.net
ursa.sr.net
vpnserver.sr
ip numbers of mailservers
200.1.157.10
200.1.159.51
reverse names of the mailservers
ironport.sr.net
solar.sr.net