facebookmx.com

• Delegation
• Authoritative answer
• Related hostnames

Delegation

Authoritative answer

ANSWER for facebookmx.com.
facebookmx.com.	3600	SOA	a.ns.facebook.com. dns.facebook.com. ( 2013041000 7200 1800 604800 3600 )
	172800	NS	a.ns.facebook.com.
	172800	NS	b.ns.facebook.com.
	7200	A	69.63.179.27
	300	MX	10 msgin.t.facebook.com.
	3600	TXT	"v=spf1 ip4:69.63.178.128/25 ip4:69.63.184.0/25 ip4:66.220.144.128/25 ip4:66.220.155.128/25 ip4:69.171.232.128/25 ip4:66.220.157.0/25 -all"
ADDITIONAL for facebookmx.com.
a.ns.facebook.com.	172800	A	69.171.239.12
b.ns.facebook.com.	172800	A	69.171.255.12

Related hostnames

Facebookmx.com is a domain controlled by two domain name servers at facebook.com. Both are on different IP networks. Incoming mail for facebookmx.com is handled by one mail server also at facebook.com having a total of twelve IP numbers. Some of them are on the same IP network. Facebookmx.com has one IP number (69.63.179.27), but the reverse is fbmail.snc1.tfbnw.net.

Facebookappmail.com point to the same IP and also shares both name servers and mail servers. Facebookmail.com point to the same IP and also shares mail servers. Mx01.facebookmail.com and fbmail.snc1.tfbnw.net point to the same IP. Facebook.com share both name servers and mail servers with this domain. Tfbops.com, facebooksupplierstest.com, facebook.it, fbsbx.com, facebooksuppliers.com and at least 128 other hosts share name servers with this domain. Spamreport.facebook.com, mx.facebook.com, m.c10r.facebook.com and star.c10r.facebook.com share mail servers with this domain. Www.facebookmx.com are hosts under this domain.

Also check www.facebookmx.com.

Facebookmx.com is hosted on a server in Menlo Park, CA, United States.

The mail server msgin.t.facebook.com

There are eight domains that use the mail server msgin.t.facebook.com.

• All of those use only the mail server msgin.t.facebook.com.
• Three of them point to the IP number 69.63.179.27. Worth noting is that three of the host names that point to the IP number 69.63.179.27 use the mail server msgin.t.facebook.com.

The IP number 69.63.179.27

There are five host names that point to the IP number 69.63.179.27.

• All of those point only to that ip number.
• Three of them use the name server b.ns.facebook.com. Worth noting is that three of the domains that use the name server b.ns.facebook.com point to the IP number 69.63.179.27.
• Three of them use the name server a.ns.facebook.com. Worth noting is that three of the domains that use the name server a.ns.facebook.com point to the IP number 69.63.179.27.

The name server b.ns.facebook.com

Most of the more than two hundred domains that use the name server b.ns.facebook.com use the two name servers a and b.ns.facebook.com together, hereafter referred to as "name server group 1", (example: opencompute.net, fbcdn.com and facebookdownloader.com ).

The name server a.ns.facebook.com

There are more than two hundred domains that use the name server a.ns.facebook.com.

• A third of those point to the IP number 173.252.110.27 (example: facebook.com.tw, facebook.fr and facebookhome.info ).
• Seven percent of them use the five name servers ns3.facebook.com, ns4.facebook.com, ns5.facebook.com, a.ns.facebook.com and b.ns.facebook.com together (example: facebook-survey.com, 126.13.31.in-addr.arpa and 69.13.31.in-addr.arpa ).

The two name servers a and b.ns.facebook.com together

One quarter of the more than two hundred domains that use name server group 1 point only to the IP number 173.252.110.27 (example: facebook.be, fb.com and whyfacebook.com ).