go
mail-qy0-f60.google.com has one IP number , which also has a corresponding reverse pointer. aspmx.l.jerseys-world.com point to the same IP. google.com is a domain controlled by four nameservers at google.com themselves. All of them are on different IP networks. Incoming mail for google.com is handled by four mailservers. All of them are on the same IP network. google.com has six IP numbers. All of them are on the same IP network. mail-qy0-f60.google.com is hosted on a server in United States.

mail-qy0-f60.google.com
a records
 
+ 209.85.221.60 209.85.221.0/24 AS15169 -
+ --- -

google.com
a records
 
+ 64.233.169.99 64.233.168.0/23 AS15169  
+ ---  
+ 64.233.169.103 64.233.168.0/23 AS15169  
+ 64.233.169.104 64.233.168.0/23 AS15169  
+ 64.233.169.105 64.233.168.0/23 AS15169  
+ 64.233.169.106 64.233.168.0/23 AS15169  
+ 64.233.169.147 64.233.168.0/23 AS15169  
ns-soa records
ns1.google.com
+ 216.239.32.10 216.239.32.0/24 AS15169 -
+ --- -
ns records
ns1.google.com
+ 216.239.32.10 216.239.32.0/24 AS15169 -
+ --- -
ns2.google.com
+ 216.239.34.10 216.239.34.0/24 AS15169 -
ns3.google.com
+ 216.239.36.10 216.239.36.0/24 AS15169 -
ns4.google.com
+ 216.239.38.10 216.239.38.0/24 AS15169 -
mx records
google.com.s9a1.psmtp.com
+ 74.125.148.10 74.125.148.0/24 AS26910 s9a1.psmtp.com
+ --- s9a1.psmtp.com
google.com.s9a2.psmtp.com
+ 74.125.148.11 74.125.148.0/24 AS26910 s9a2.psmtp.com
+ --- s9a2.psmtp.com
google.com.s9b1.psmtp.com
+ 74.125.148.13 74.125.148.0/24 AS26910 s9b1.psmtp.com
+ --- s9b1.psmtp.com
google.com.s9b2.psmtp.com
+ 74.125.148.14 74.125.148.0/24 AS26910 s9b2.psmtp.com
+ --- s9b2.psmtp.com
ip numbers of host
209.85.221.60
ptrs of ip numbers
mail-qy0-f60.google.com
ip numbers using ptr to this host
209.85.221.60
hostnames sharing ip with a-records
aspmx.l.jerseys-world.com
domains using this as mailserver under another name
jerseys-world.com