Xfinity Forum Archive...
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This change was done in an effort to make the forum easier to use and to keep only the most helpful and recent content active.
Post your questions in the Xfinity Community
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delete your own text from the attached returned message.WHY AM i GETTING THIS MESSAGE?
The mail system
<Edited for violating forum guidelines: "Personal Information">: host mx2.comcast.net[126.96.36.199] said: 550 5.2.0
3cfBdDN2Ex24M3cfCdPmmU Message rejected due to DMARC. Please see
http://postmaster.comcast.net/smtp-error-codes.php#DM000001 (in reply to
end of DATA command)LINDA <Edited for violating forum guidelines: "Personal Information">
The technical explanation is:
This message has been rejected by the Comcast mail servers due to the sending domain's published DMARC policy. The sending domain has published a DMARC reject policy and this message has not passed either DKIM or SPF authentication for the domain. For more information on DMARC, visit http://dmarc.org.
To give some context to the above-
DMARC is used by domain owners (in this case, pinterest) to help address issues with spam forged to be their domain, and to identify non-forged items so they can be delivered. Most of the time this works ok, but some forwarding services (in this case, it looks like century21) 'change' the original message enough that it no longer passes either the SPF or DKIM check mentioned above.
Comcast follows the published domain owner's policy, so options here are forwarding the above details to the IT folks at century21.com for them to take a closer look at how they forward messages and fix what's breaking the DMARC authentication, or having pinterest send to your comcast email address, instead of forwarding via century21
Hope this helps,