Nslookup -q=txt <domain>
For example Microsoft.com has SPF and domainKeys, it appears:
C:\>nslookup -q=txt microsoft.com
Server: dsldns-va.embarqhsd.net
Address: 208.33.159.39
Non-authoritative answer:
microsoft.com text =
""FbUF6DbkE+Aw1/wi9xgDi8KVrIIZus5v8L6tbIQZkGrQ/rVQKJi8CjQbBtWtE64ey4NJJw
j5J65PIggVYNabdQ=="."
microsoft.com text =
"IN"
""FbUF6DbkE+Aw1/wi9xgDi8KVrIIZus5v8L6tbIQZkGrQ/rVQKJi8CjQbBtWtE64ey4NJJw
j5J65PIggVYNabdQ=="."
microsoft.com text =
"v=spf1 mx include:_spf-a.microsoft.com include:_spf-b.microsoft.com inc
lude:_spf-c.microsoft.com include:_spf-ssg-a.microsoft.com ip4:131.107.115.212 i
p4:131.107.115.215 ip4:131.107.115.214 ip4:205.248.106.64 ip4:205.248.106.30 ip4
:205.248.106.32 ~all"
If you get an SOA record, it means there are no text records.
C:\>nslookup -q=txt yahoo.com
Server: dsldns-va.embarqhsd.net
Address: 208.33.159.39
yahoo.com
primary name server = ns1.yahoo.com
responsible mail addr = hostmaster.yahoo-inc.com
serial = 2010101104
refresh = 3600 (1 hour)
retry = 300 (5 mins)
expire = 1814400 (21 days)
default TTL = 600 (10 mins)
I don't have time to answer the public vs. non-public question right now,
perhaps someone else can join in...
Regards,
Michael B. Smith
Consultant and Exchange MVP
http://TheEssentialExchange.com
-----Original Message-----
From: Maglinger, Paul [mailto:[email protected]]
Sent: Monday, October 11, 2010 3:17 PM
To: NT System Admin Issues
Subject: Entire SPF record publically seen?
Just a quick question and easy I'm sure. Is it possible to view the SPF
record of another domain? Additionally, just how much of your DNS records are
publically available?
-Paul
~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~
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