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Old 30 Oct 2018, 04:21 PM   #12
Join Date: May 2018
Posts: 82
Originally Posted by n5bb View Post
There are rare cases where the sender appears to be spoofed (such as DMARC failure), so X-Spam-Known-Sender is forced to no even if the address is in your contacts list.
Ok, thanks for the clarification.
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