John, Thank you very much for the explanation. Is there any way to find out if my mail server support the Authentication-Results message header? Linda -----Original Message----- From: John Levine [mailto:johnl@xxxxxxxxx] Sent: Wednesday, October 31, 2018 1:09 PM To: ietf@xxxxxxxx Cc: Linda Dunbar <linda.dunbar@xxxxxxxxxx> Subject: Re: [dmarc-ietf] Opsdir last call review of draft-ietf-dmarc-rfc7601bis-03 In article <154100817740.5314.5936662570396773189@xxxxxxxxxxxxxx> you write: >Reviewer: Linda Dunbar >Review result: Ready > >I have been assigned to review draft-ietf-dmarc-rfc7601bis-03 on behalf >of the ops directorate. This document specifies a message header field >called Authentication-Results for use with electronic mail messages to >indicate the results of message authentication efforts. > >The document is written very clear. The only question I have is if the >mechanism described in the document are actually used by popular >mail-server, such as Microsoft Outlook? Gmail, Yahoo, and AOL all add Authentication-Results headers to incoming mail. Outlook is a mail client. Dunno what their Exchange servers do. R's, John
