fcrdns: updated docs noting Auth-Results header
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@ -8,7 +8,8 @@ Forward Confirmed RDNS - http://en.wikipedia.org/wiki/FCrDNS
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Determine if the SMTP sender has matching forward and reverse DNS.
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Sets the connection note fcrdns.
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Adds the 'iprev' section to the Authentication-Results header when
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there's sufficient DNS (at least rDNS) to be meaningful.
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=head1 WHY IT WORKS
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