Can you have multiple DMARC records on a single domain? The answer is no: a domain MUST NOT have multiple DMARC records, otherwise DMARC processing fails to function on that domain.

A DMARC record is a TXT record in the DNS starting exactly with "v=DMARC1", followed by a list of DMARC tags…

Yes, you can set up DMARC without DKIM and have only DMARC and SPF in the equation. In this case, DKIM check always fails and DMARC authentication result is up to SPF check and SPF identifier alignment, which still somewhat works but is less than optimal…

DMARC failure reports are generated and sent almost immediately by the mailbox provider after an email fails DMARC authentication. It provides detailed information about the email message so that the domain administrator can use it to investigate into what caused th…

What is DMARC?

DMARC, short for Domain-based Message Authentication, Reporting & Conformance, is an email authentication protocol to check if an email message really originates from where it claims to have, based on SPF and DKIM. In addition to email authentication, it also adds reporting capabi…

DMARC, which stands for “Domain-based Message Authentication, Reporting & Conformance”, is a way to determine whether an email message is actually from the sender or not. It builds on the widely deployed SPF and DKIM protocols, and adds domain alignment checking and reporting capabi…

We will cover a lesser discussed DMARC topic in this article: how does DMARC work in subdomain scenarios?

Specifically, we will address these questions below:

Before divin…

This post provides step-by-step instructions on how to add a DMARC record in Bluehost.

If you prefer video-based learning, scroll down to the end of this post to view the video walkthrough .

First of all, a DMARC record is a TXT record published to the DNS for your domain,…

This post provides step-by-step instructions on how to add a DMARC record in CloudFlare.

First of all, a DMARC record is a TXT record published to the DNS for your domain, under dmarc.yourdomain.com, where “yourdomain.com” is your actual domain or subdomain…

This post provides step-by-step instructions on how to add a DMARC record in GoDaddy.

First of all, a DMARC record is a TXT record published to the DNS for your domain, under dmarc.yourdomain.com, where “yourdomain.com” is your actual domain or subdomain…

This post provides step-by-step instructions on how to add a DMARC record in Namecheap.

First of all, a DMARC record is a TXT record published to the DNS for your domain, under dmarc.yourdomain.com, where “yourdomain.com” is your actual domain or subdomain…

Can you add multiple reporting email addresses to a single DMARC record? The answer is yes, you can add multiple rua and/or ruf reporting email addresses to your DMARC record. That way, you will receive a copy of each DMARC report at each of the email addresses…

This article aims to provide a complete guide to implementing SPF, DKIM, and DMARC for your organization, and suggest the best practices for doing so. It is written in hopes that this will clear up confusion about what steps to take to achieve an effective DMARC deployment to secure business email a…

If you'd like to monitor the authentication status of your email infrastructure without having to log in to the dashboard everyday, there is a way.

You can subscribe to our periodic summary reports so that these reports are delivered to your inbox daily, weekly, or monthly…

It's critically important for any company using Office 365 Exchange Server for email to implement DMARC, DKIM, and SPF to prevent or stop email spoofing and phishing as well as improve email deliverability.

Office 365 has become the de facto standard for productivity software…

Contrary to popular belief, setting up DMARC to protect your company email is much easier than it seems. In this post, we will show you 3 easy steps to set up DMARC: generate, publish, and analyze, as illustrated below:

A DMARC record is a TXT record to be…

This article shows how to set up email authentication on your email streams using DMARC data, with actionable steps.

An email stream is the route a group of emails take from the source to the receiver, on behalf of a domain…

This tutorial provides step-by-step instructions on how to set up DMARC starting from p=none, transition to p=quarantine, then to p=reject using DMARCLY, a dedicated DMARC analyzer service.

The tutorial assumes no prior knowledge whatsoever of DMARC or DMARC reports…

Once you've created a Google Workspace, formerly known as G Suite, account on your domain, you will need to set up email authentication so that emails sent from Google Workspace on behalf of your domain are fully authenticated, and keep monitoring the authentication status and take action if necessa…

People tend to think of setting up email authentication with DMARC, DKIM, and SPF as time-consuming and error-prone because they have to search the Web for various articles and tools to achieve a simple DMARC, DKIM and SPF setup. This can take days for those who aren't proficient in email authentica…

DMARC tags are used in a DMARC record to define various aspects of a DMARC implementation, such as policy, aggregate report email URI, forensic report email URI, and more.

A DMARC record is a TXT resource record published in the DNS on the subject domain…

DMARC, short for Domain-based Message Authentication, Reporting & Conformance, is an email authentication protocol to check if an email message really originates from where it claims to have, based on SPF and DKIM, another two email authentication protocols…

Email end users check the from field in their email clients to tell where an email comes from. However, SPF doesn't authenticate the field, neither does DKIM. This means "what you see might not be what's been authenticated". That's why the identifier alignment mechanism is introduced in DMARC…

What is rua in DMARC, and what role does it play in a typical DMARC implementation? In this post, I'll explain what rua is and how it works.

Before we dive right into that, let's take a look at these DMARC concepts: DMARC record and DMARC tag…

As DMARC forensic (failure) reports leak Personally Identifiable Information (PII), many mainstream ESP's don't send forensic reports nowadays. As a result, you won't see any forensic reports in the DMARCLY dashboard if no emails are sent to any ESP that supports DMARC forensic reports…

Why are your emails going to spam (junk) instead of the inbox? If one is using Gmail, he might find his legitimate emails sitting in the Spam folder; or if he is using Outlook, he might find them in the Junk folder. Everyone has had that frustrating experience…