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DMARC - gmail.com or is it yahoo.com
- From: cyg Simple <cygsimple at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Tue, 29 Nov 2016 09:24:33 -0500
- Subject: DMARC - gmail.com or is it yahoo.com
- Authentication-results: sourceware.org; auth=none
I find this excerpt from cygwin-help a bit confusing. Notice the
"yahoo.com" in the "Remote host said:" message. What's really going on
here? Why is yahoo.com doing the authentication for a gmail.com address?
Received: (qmail 130602 invoked for bounce); 17 Nov 2016 10:26:04 -0000
Date: 17 Nov 2016 10:26:04 -0000
Subject: failure notice
Hi. This is the qmail-send program at sourceware.org.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
User and password not set, continuing without authentication.
<firstname.lastname@example.org> 188.8.131.52 failed after I sent the message.
Remote host said: 550-5.7.1 Unauthenticated email from yahoo.com is not
accepted due to domain's
550-5.7.1 DMARC policy. Please contact the administrator of yahoo.com
550-5.7.1 this was a legitimate mail. Please visit
550-5.7.1 https://support.google.com/mail/answer/2451690 to learn about the
550 5.7.1 DMARC initiative. e69si30940847pfk.231 - gsmtp
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