David Howe replied to Rajiv K Khandelwal
24-Nov-09 07:32 AM
SPF is just a TXT record in your dns - so to see yours (if you have one)
open a copy of nslookup, and type "set q=txt", hit enter, then type
your domain name.
a typical record would be:
which translates to "only hosts in the mx record are legitimate senders"
decent overview here
http://en.wikipedia.org/wiki/Sender_Policy_Framework