On 2011-05-30 3:35 PM, Steve wrote:
> 30 00:52:56 Failed 18.104.22.168 HIDDEN@mnsi.net>
> HIDDEN@snscomputing.com> 768 <email@example.com>
> "[22.214.171.124] [Site snscomputing.com (126.96.36.199) before data sent:
> 550 5.7.1 SPF unauthorized mail is prohibited.] Please see
If you look at:
it will show you the only IPs authorized to send mail from mnsi.net. If
the IP of your server (which seems to be 188.8.131.52) is not in that
list (they are all 216.8.x.x IPs), the SPF will fail.
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