"A Guide to Google and Yahoo Email Authentication Changes in 2024."

DMARC (Domain-based Message Authentication, Reporting & Conformance) is a standard that extends SPF and DKIM, empowering domain owners to establish policies for mailbox providers (such as Google or Microsoft) in the event of SPF and DKIM check failures.

DMARC offers three primary policy configurations:

Selecting a DMARC policy of "Quarantine" or "Reject" necessitates having a proper DKIM record configured for the sending domain. Failure to do so could result in all emails from AiTrillion failing the DMARC test, leading to their placement in the spam folder ("Quarantine") or complete blocking ("Reject"). Ensure DKIM is set up for all sending domains before implementing a stringent DMARC record.
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To initiate DMARC implementation, it is advisable to commence with a policy of "None" to avoid impacting deliverability in the case of misconfiguration. Subsequently, monitoring DMARC reports will provide insights into the potential impact of adopting a stricter policy.

To make these entries in the DNS record, navigate to your domain provider's website and access the DNS records section.

A recommended initial DMARC policy is provided below.

To visit the domain provider's website, you can refer to the screenshot below for details:

Godaddy.com
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Step 1: Log into Your GoDaddy Account
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Step 2: Navigate to the DNS Management
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Step 3: Add a TXT Record for DMARC
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Step 4: Set Your DMARC Policy
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Step 5: Save Your Changes

Namecheap.com
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1. Having logged into the Namecheap account, choose Domain List on the left and click on the Manage button next to your domain:

2. Navigate to the Advanced DNS tab from the top menu and click on the Add New Record button:

3. Set Your DMARC Policy.
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4. Save Your Changes

Bluehost

1. Log in to Bluehost

Navigate to bluehost.com, and enter your credentials to log in to its dashboard.

2. Locate your domain

On the Bluehost dashboard's home page, find the domain you want to add the DMARC record to, then click the Manage button, as highlighted below:

In this example, we are adding the record to the domain partnerflare.com.

3. Manage DNS

Click the DNS tab, as shown below:

Now you will see the DNS section, where you can create a DMARC record for your domain.

4. Create the record entry

Scroll down to the bottom of the page, where you can see a section for the TXT record type.

Click the Add Record button.

Then enter the settings for your DMARC record. Make sure the host record is set to _dmarc, TXT value is set to the record generated above. Click the Save button. Now you have added the record!
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​For other domains
​Create a TXT record with a Host or Name of _dmarc at your DNS provider and input the following value for the Value or Record.
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Be sure to replace the email address in the example with your own:
​v=DMARC1; p=none; pct=100; rua=mailto:youremail@example.com

It is crucial to replace the email address in the example to ensure receipt of DMARC reports. However, depending on your email volume, the specified email address's mailbox might become overwhelmed or reach its quota. Additionally, since DMARC reports are sent in XML format, they can be challenging to interpret. Therefore, it is highly recommended to collaborate with a DMARC monitoring solution capable of processing these reports and offering more comprehensible and actionable insights.

To validate the DMARC entry for your domain, you can use this online tool

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