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Questions tagged [dmarc]

DMARC, (Domain-based Message Authentication, Reporting & Conformance), is a technical specification standardizing how email receivers perform email authentication using the well-known SPF and DKIM mechanisms.

DMARC, (Domain-based Message Authentication, Reporting & Conformance), is a technical specification standardizing how email receivers perform email authentication using the well-known SPF and DKIM mechanisms.

http://www.dmarc.org/

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Email did not match DMARC policy, while SPF seems to match

I have a DMARC policy set for a domain like so, to combat email spoofing: v=DMARC1;p=quarantine;rua=mailto:me@example.com;pct=100;ruf=mailto:me@example.com;fo=0:d:s;aspf=r;adkim=r; Today I received a report that an email was rejected with the…
Sumurai8
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Intermittent SPF fail, something to do with field

My domain is running SPF/DMARC but not DKIM. Just recently we started getting intermittent SPF fails reported in the DMARC aggregate reports (reports are almost all from google, we are not a large volume sender). Within the same day's report, we…
SKaye
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DKIM failing but can't find any problem with hashing or signing syntax

I'm writing my own DKIM implementation in Node.js and I'm having a problem getting my DKIM to pass. Here is my mail body: dGVzdA==\r\n Here is the body hash (sha256): STFhz2ITzV8iSPWgLK0kfUa69jvk327MHRw2ZpGDvWE= Here is my dkim header hash…
sonrh
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Are high error rates (low delivery rates) caused by "SPF DMARC: fail-unaligned" when using third-party email sender, and how to fix

Let's call my server "example.com". I send transactional emails via Amazon SES and am not aware of any problems there. For email campaigns (newsletters to 12k+ contacts) though, I use SendPulse.com. Their settings page shows green checkboxes,…
Ryan
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Proper way to iterate Python dictionary and build new one

I'm trying to find a cogent way to check to see whether certain keys exist in a dictionary and use those to build a new one. Here is my example json: "dmarc": { "record": "v=DMARC1; p=none; rua=mailto:dmarc.spc@test.domain; adkim=s; aspf=s", …
tparrott
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is email received from "mailer daemon@report domain submitter esa1.hc3329-29.iphmx" a DMARC report?

received email from "mailer daemon@report domain submitter esa1.hc3329-29.iphmx" which appears to have an dmarc report xml file attached, is it a legit dmarc report ? if not correct to ask this question here please make suggestion where to find…
rwww
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why gmail receive my email in spam folder and how can i solve it?

I am really confused. Gmail still puts my emails into spam folder. I have DMARC, DKIM and SPF records, all valid.this is image from gmail message please tell me why all of email in my domain received as spam and how can i solve it
ahmed yousry
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How to track emails which are not DKIM aligned

I've set up DKIM on my domain and configured Postmark to send me a DMARC Daily Digest to monitor that everything is set up correctly. Each week, I have around half of my emails sent through Google marked as not DKIM aligned: Any idea to how to…
ThomasArdal
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Better way to merge several SPFs TXT records passing DMARC

I have these 3 spf txt records to add recommended for different email providers to be addeed to my DNS TXT records to avoid spamming by DMARC: "v=spf1 mx a include:_spf.getresponse.com -all" "v=spf1 include:emsd1.com ~all" "v=spf1…
Jose Gallo
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Trouble with DMARC and Google Apps / GSuite

I've had the following DMARC policy setup for over a year, but in the last two weeks I'm suddenly unable to send emails to many people. Yet I haven't changed this record. I am experienced with DNS, server administration and programming yet I cannot…
Spencer Hill
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SPF + DKIM + DMARC = Passed yet message ends in spam

Trying to send out emails yet they end up in spam folders for some reason. So we tweaked and adjusted Dkim and Dmarc, now all records show passed within Gmail, yet still flags as spam. Also tested via dkimvalidator , this results in all records…
Nicholas
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Outlook.com marks message as junk even passing DMARC, DKIM and SPF checks

Emails sent by my server successfully hits the inbox of pretty much all email providers, except Outlook.com. Authentication-Results: spf=pass (sender IP is xxx.xxx.xxx.xxx) smtp.mailfrom=mydomain.com; outlook.com; dkim=pass (signature was…
TTKDroid
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DMARC: ESPs host as sender in report

We're sending emails. We're sending thousands of emails per day because we have our customers who'd like to be informed by us (and we do have their consents ;) ). And we've just enabled DMARC with p=none to see what will happen. And here it…
insane
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Unable to tell if my Postfix Mail Daemon email report is spoofed

I run a mailserver off Postfix on an Ubuntu 16.04 Droplet on DigitalOcean. The mailserver is a (closed) SMTP relay that uses mail client interfaces like Gmail and Hotmail to send emails from my domain (let's call it example.com). It has SPF, DKIM…
John Doe
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Bulk Emailing Domain Usage

i am planning strategy for our bulk marketing emails and bulk recruitment emails. Shall we use seperate domains for marketing and recruitment bulk emails even if we are using SMTP Relay service of providers like Critsend and Sendgrid. Reason i am…
user1400290
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