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Received-SPF: none (domain of deens1.chickenkiller.com does not designate permitted sender hosts)

Received-SPF: pass (google.com: best guess record for domain of root@deens1.chickenkiller.com designates 89.248.166.162 as permitted sender) client-ip=89.248.166.162;

these are mail headers when i send email from my domain.I want to know why gmail is showing spf="pass" and why yahoo is showing it "none".

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You don't have any SPF records specified for deens1.chickenkiller.com. That's probably source of your confusion. –  jamieb Aug 13 '12 at 22:03
    
but why is gmail giving spf = pass –  achal tomar Aug 13 '12 at 22:12
    
Because it's not explictly denied. –  jamieb Aug 13 '12 at 22:43
    
what do you mean by "explictly denied"? –  achal tomar Aug 13 '12 at 23:03

1 Answer 1

up vote 1 down vote accepted

Probably it has something to do with best guess record phrase in the Received-SPF header which probably indicates it (Gmail) hasn't seen any mails from this domain from any other IP address, which is to imply that it's not explicitly using SPF because there're no records, but trying to verify it from its records, unlike Yahoo! which is only using SPF record.

HTH

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Thanks for your response i created the spf records and now yahoo is showing "pass" in spf,the problem was that the spf records were not correct previously. –  achal tomar Aug 14 '12 at 10:17

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