Multiple DMARC Records On Domain |GoDMARC

1. Can I Have Multiple DMARC Records on My Domain? Having multiple DMARC records on domain is strictly a no-no, and here is why! As we all are aware that implementing email authentication protocols such as DMARC is crucial for an organization’s reputation along with its data security. In order to create DMARC record for domain owners have to publish TXT record in their DNS. Despite deploying DMARC, there is a common question asked frequently in the community is that “Can you have multiple DMARC records on my domain?” The answer is no. Your DMARC record can be invalidated if you have multiple records on the same domain. Therefore, the DMARC authentication policy set for your domain fails to function.

2. What is the Procedure of Implementing DMARC Records by MTAs? When a DMARC record is published in your domain’s DNS, it looks similar to this: TXT mydomain.com v=DMARC1; p=reject; rua=mailto:example@aggregatereports.com Therefore, when a domain which is specifically DMARC configured sends an email, the email receiving MTA fetches all TXT records that start with v=DMARC1. The MTA queries the DNS of the sending domain and may come across the following scenarios: It searches for a single valid DMARC record in the DNS of the source domain and according to the DMARC policy specifications, the request is further processed. If it is unable to find any DMARC record for the sending domain, then DMARC processing automatically ceases and the mail is delivered without thorough verification of the source. If it finds multiple DMARC records on the similar domain and in this particular case if the DMARC processing is also discontinued, then the applied policy fails to be executed.    How to Fix Multiple DMARC Records? When you get your DMARC configured for the domain and set a policy, you want to immediate response from MTAs to set your emails in such a way that aligns with your intentions. This is the most efficient way DMARC can protect your domain against impersonation and spoofing. In order to make sure that your configured protocol works properly, we highly recommend you follow the below-mentioned steps: 1.Ensure that you have not published multiple DMARC records for your domain. 2.Double-check that your DMARC record does not contain syntax errors.

3. 3.Replace manually generating your DMARC record with reliable tools to do the job efficiently for you. 4.Enable DMARC reports for your domain in order to monitor your email flow and authenticate results from time to time, in order to effectively track delivery issues and take strict action against malicious sending sources. 5.Do not exceed the SPF 10 lookup limit to avoid perm error result. If you simply sign up with our premium DMARC analyzer, it is one of the effective alternatives you can take in order to implement DMARC correctly for your domain. Conclusion GoDMARC efficiently handles all your complexities, it is your one-stop destination to get seen and heard by your potential clients. We are here to automate your email authentication journey and assist you to mitigate any configuration errors that may cause issues in your email deliverability. Check out our website for pocket- friendly DMARC pricing now!