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Understood DMARC record and add it to domain DNS

A DMARC record is the core of a DMARC implementation in which DMARC record rules are defined. This DMARC record informs email recipients whether a

DMARC record setup:

What is DMARC Record and how to add it to the domain, we have told about it completely in this article and video. If you read this article carefully, you will understand how DMARC Record is added to the domain. 

Understood DMARC record

We have written a complete post about this in this article. You can read this article for more information and without reading this article, you will not be able to add DMARC records properly, so you are requested to read this article so that you can fully understand how to record DMARC records. Have to add.

What is DMARC Record:

It simply means monitoring and maintaining all messages that fail DMARC tests.

A DMARC record is the core of a DMARC implementation in which DMARC record rules are defined. This DMARC record informs email recipients whether a domain has been set for DMARC. If so, the DMARC record contains the policy that the domain owner wants to use. In essence, a DMARC records a DNS (Domain Name Service) entry. One can start using DMARC by implementing DMARC DNS records. This DMARC record will be used by email recipients who have adopted DMARC. This will result in keeping track of all messages sent to your domain in keeping with your DMARC policy.

This DMARC record is kept by your DNS manager in your DNS. This may be an internal role in your organization, you may have access to a dashboard provided by your DNS provider or you may be asked by your DNS provider to keep such a record. The assumption is that this would empower the organization publishing the DMARC records to dictate how non-compliance should be handled. Messages can be monitored (and delivered), moved to the Junk folder, or rejected.

How to set DMARC record:

If your domain is hosted on Cloudflare, you can add automatic and accurate DMARC records in just one click. In the DNS section, you will see the option to add DMARC records. This option will appear if you have not added DMARC records. For another platform:

First of all, you open your DNS panel and fill all the text and values, ​​etc. as given below in it, and then submit. Your DMARC record has been added. You can check with any DMARC record checker tool.

This is an example of a DMARC policy record. v and p tags must be listed first, other tags can be in any order:

Type: TXT

Host/Name: _dmarc.yourdomain

Value: v=DMARC1; p=reject; rua=mailto:youremail, mailto:youremail; pct=100; adkim=s; aspf=s


Value: v=DMARC1; p=reject; rua=mailto:youremail; ruf=mailto:youremail; fo=1; pct=100

DMARC policies (p)

none: Monitor only the results and don't take specific action for failed messages. Use this policy to begin collecting DMARC reports and analyze the data in these reports.
quarantine: Keep messages that fail the DMARC test in quarantine. This mostly means that recipients will keep these messages in the Junk folder.
reject: Reject all messages that fail DMARC checks. Recipients must do this at the SMTP level', which means messages will be bounced directly in the sending process.




DMARC version.  write DMARC1


Specifies that the percentage of unauthorized messages is subject to the DMARC policy. As you gradually deploy DMARC, you can start with a small percentage of your messages. As more messages from your domain pass authentication with the receiving servers, update your records with a higher percentage until you reach 100 percent.

Must be an integer from 1 to 100. If you do not use this option on record, your DMARC policy applies to 100% of messages sent from your domain.


Email address to receive reports about DMARC activity for your domain.

Example- [email protected]

To send the report to more than one email address, separate the emails with commas.

rufNot supportedThe ruf tag is used to send failure reports. A failure report is also called a forensic report.

spOptionalSets the policy for messages from subdomains of your primary domain. Use this option if you want to use a different DMARC policy for your subdomain.
none - Do not take any action on the message and deliver it to the intended recipient. Log messages in a daily report. The report is sent to the email address specified in the policy with the rua option.
quarantine - mark messages as spam and send them to the recipient's spam folder. Recipients can review spam messages to identify legitimate messages.
reject - Reject the message. With this option, the receiving server should send a bounce message to the sending server. 
If you do not use this option in the record, the subdomains inherit the DMARC policy that is set for the parent domain.

adkimOptionalSets the alignment policy for DKIM, which defines how strictly message information must match DKIM signatures.
s - strict alignment. The sender domain name must exactly match the corresponding d=domainname in the DKIM mail header.
r - Easy alignment (default). Allows partial matching. Any valid subdomain of d=domain in the DKIM mail header is accepted.

aspfOptionalSets the alignment policy for SPF, which specifies how strictly message information must match SPF signatures.
s - strict alignment. The message from the header must exactly match the domain name in the SMTP MAIL FROM command.
r - Easy alignment (default). Allows partial matching. Any valid subdomain of the domain name is accepted.


DMARC Analyzer offers a free-to-use DMARC Record Check Tool to display your record, test it and verify if it is valid. All you have to do is provide your domain name to perform DMARC checks. The tool will then parse your DMARC record and display the DMARC record along with some additional information.

Use the DMARC Record Check Tool from DMARC Analyzer to test and view your DMARC records.

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