smtpin.mx.facebook.com


DNS delegation of smtpin.mx.facebook.com updated: May 26, 2013 9:08:58 AM

Delegation

stepqueryauthservers
1smtpin.mx.facebook.com..(m,d,l,f,g,e,j,i,k,a,h,b,c).root-servers.net.
2smtpin.mx.facebook.com.com.(f,d,h,a,m,b,i,c,j,g,e,l,k).gtld-servers.net.
3smtpin.mx.facebook.com.facebook.com.(a,b).ns.facebook.com.
4msgin.t.facebook.com.facebook.com.(b,a).ns.facebook.com.
5msgin.t.facebook.com.t.facebook.com.(a,b).ns.t.facebook.com.
We pick m.root-servers.net, one of the 13 root servers (1), and ask it about smtpin.mx.facebook.com and learn that com is delegated to 13 name servers (2), so we ask f.gtld-servers.net where we learn that facebook.com is delegated to two name servers, including a.ns.facebook.com (3), so we ask that one where we see a CNAME from smtpin.mx.facebook.com to msgin.t.facebook.com, so we have to start all over again. We already know that b.ns.facebook.com is authoritative for facebook.com (4) and ask it about msgin.t.facebook.com and learn that t.facebook.com is delegated to two name servers (5), so we ask a.ns.t.facebook.com and get the following answer:

Authoritative answer

ANSWER for smtpin.mx.facebook.com.
smtpin.mx.facebook.com.3600 CNAME msgin.t.facebook.com.
ANSWER for msgin.t.facebook.com.
msgin.t.facebook.com.300 A66.220.155.12 msgin.t.facebook.com points to 66.220.155.12.
AUTHORITATIVE for msgin.t.facebook.com.
t.facebook.com.172800 NS a.ns.t.facebook.com. t.facebook.com use a.ns.t.facebook.com as name server.
172800 NS b.ns.t.facebook.com. t.facebook.com use b.ns.t.facebook.com as name server.
ADDITIONAL for msgin.t.facebook.com.
a.ns.t.facebook.com.172800 A69.171.239.11
b.ns.t.facebook.com.172800 A69.171.255.11
net. com. facebook.com. t.facebook.com. mx.facebook.com. ns.facebook.com. root-servers.net. gtld-servers.net. a.ns.facebook.com. b.ns.facebook.com. ns.t.facebook.com. m.root-servers.net. a.root-servers.net. g.gtld-servers.net. e.gtld-servers.net. j.root-servers.net. i.gtld-servers.net. f.gtld-servers.net. m.gtld-servers.net. k.gtld-servers.net. h.root-servers.net. d.root-servers.net. d.gtld-servers.net. i.root-servers.net. h.gtld-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. b.gtld-servers.net. f.root-servers.net. c.gtld-servers.net. c.root-servers.net. a.gtld-servers.net. b.root-servers.net. l.gtld-servers.net. j.gtld-servers.net. e.root-servers.net. a.ns.t.facebook.com. b.ns.t.facebook.com. msgin.t.facebook.com. smtpin.mx.facebook.com.
whois net
whois com
whois facebook.com
whois root-servers.net
whois gtld-servers.net

whois facebook.com, facebook.com
domain info api facebook.com

Smtpin.mx.facebook.com has ten IP numbers (69.171.244.10, 69.171.244.11, 69.171.244.13, 69.171.244.14, 66.220.155.10, 66.220.155.11, 66.220.155.13, 66.220.155.12, 66.220.155.15, 66.220.155.14). Some of them are on the same IP network.

This hostname cnames to msgin.t.facebook.com. Smtpout.mx.facebook.com point to the same IP. Tlatela.com use smtpin.mx.facebook.com as a mail server. Facebookappmail.com, facebook.com, facebookmail.com, facebookmx.com, spamreport.facebook.com and at least three other hosts use smtpin.mx.facebook.com as a mail server under another name. Www.smtpin.mx.facebook.com are hosts under this domain.

Also check www.facebook.com and facebook.com.

Smtpin.mx.facebook.com is hosted on ten servers in Menlo Park, CA, United States.

related to smtpin.mx.facebook.

robtex on smtpin.mx.facebook.com
RBL listing of smtpin.mx.facebook.com
mnw
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