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wHY DO i HAVE A WHOLE PAGE OF AUTHENTICATION RESULTS, ETC. ON EMAILS

GWEN9361
GWEN9361
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Suddenly my emails have a whole page of stuff that I have never seen before. Is there a setting that would cause me to get all of the following? 

Return-Path

Authentication-Results Received from DKIM Signature Received from Received Received Received XYahooNewman Property X-Y Mail-OSG X-Yahoo=SMTP Content-Type Content-Transfer-Encoding MIME-Version Message_ID References In Reply to XMailer XAuthority

Suddenly my emails have a whole page of stuff that I have never seen before. Is there a setting that would cause me to get all of the following? Return-Path Authentication-Results Received from DKIM Signature Received from Received Received Received XYahooNewman Property X-Y Mail-OSG X-Yahoo=SMTP Content-Type Content-Transfer-Encoding MIME-Version Message_ID References In Reply to XMailer XAuthority

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user01229325
user01229325
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View-Headers-Normal instead of All