Dunno whether this is serious or not, what with the reference to example.com 
and all, but if it is ...

I draw your attention to the SPF record’s single clause.

If this was a test, it was poorly chosen.



$ host -t txt example.com

example.com descriptive text "v=spf1 -all"


Aloha,
Michael.
--
Michael J Wise
Microsoft Corporation| Spam Analysis
"Your Spam Specimen Has Been Processed."
Got the Junk Mail Reporting 
Tool<http://www.microsoft.com/en-us/download/details.aspx?id=18275> ?

-----Original Message-----
From: mailop [mailto:[email protected]] On Behalf Of David Sgro, 
Dataspindle
Sent: Tuesday, November 15, 2016 11:26 AM
To: Terry Barnum <[email protected]>; [email protected]
Subject: Re: [mailop] Confused by bounce



Possibly a manual blacklist by that domain?



-----Original Message-----

From: mailop [mailto:[email protected]] On Behalf Of Terry Barnum

Sent: Tuesday, November 15, 2016 2:02 PM

To: [email protected]<mailto:[email protected]>

Subject: [mailop] Confused by bounce



If we send email to a specific gmail user we receive a bounce from Hotmail 
saying it can't deliver due to our DMARC policy. Postfix logs show the email 
being delivered and accepted by gmail. Email to other gmail users goes through 
fine.



Postfix delivery-

Nov 14 18:12:00 mail.example.com postfix/smtp[7000]: 3tHrVm0qyVzKk7bl: 
to=<[email protected]<mailto:[email protected]>>, 
relay=gmail-smtp-in.l.google.com[173.194.203.26]:25, delay=0.76, 
delays=0.02/0.01/0.48/0.24, dsn=2.0.0, status=sent (250 2.0.0 OK 1479175920 
p62si24555443pfi.27 - gsmtp)



Bounce-

Reporting-MTA: dns;BLU004-OMC4S37.hotmail.com

Received-From-MTA: dns;NAM04-SN1-obe.outbound.protection.outlook.com

Arrival-Date: Mon, 14 Nov 2016 18:12:05 -0800



Final-Recipient: rfc822;[email protected]

Action: failed

Status: 5.5.0

Diagnostic-Code: smtp;550-5.7.1 Unauthenticated email from example.com is not 
accepted due to domain's

550-5.7.1 DMARC policy. Please contact the administrator of example.com domain 
if

550-5.7.1 this was a legitimate mail. Please visit

550-5.7.1  
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.google.com%2Fmail%2Fanswer%2F2451690&data=02%7C01%7Cmichael.wise%40microsoft.com%7Ce518fcb88cc74cb11d2b08d40d8e5c00%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636148352462936043&sdata=Tp0ESIrlQCEezqrPx6Dea3leznKOTfJZTh07%2B0iGTyw%3D&reserved=0
 to learn about the

550 5.7.1 DMARC initiative. xz8si20469041pab.182 - gsmtp



I'm confused as to how this can happen. Could the gmail user be forwarding 
received email to a hotmail account and then back to gmail, breaking DMARC?



Thanks,

-Terry



Terry Barnum

digital OutPost

Carlsbad, CA



https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.dop.com&data=02%7C01%7Cmichael.wise%40microsoft.com%7Ce518fcb88cc74cb11d2b08d40d8e5c00%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636148352462946051&sdata=HvEiLW3Jx%2BtN3hX0fdktiltl2EISl8hYt1xzuJsBuNI%3D&reserved=0

800/464-6434







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