Setting up Dynamic DMARC using Name Servers

  1. Open the Route 53 console.

  2. In the navigation pane, choose Hosted zones.

  3. Select the hosted zone for the domain (example.com).

  4. In the hosted zone for the domain, choose Create record.

  5. For Name, enter the name of the subdomain.

    1. For Dynamic DMARC enter: _dmarc

  6. For Value, enter the names of the name servers.

    1. For Dynamic DMARC enter: ns-dmarc.ondmarc.com

  7. For Record type, choose NS.

  8. For TTL (Seconds), select a more common value for an NS record, such as 172,800 seconds.

  9. For Route Policy, choose Simple routing.

  10. Choose Create Records.

Setting up Dynamic DMARC using CNAMES

  1. Login to your Route 53 Console.

  2. In the navigation pane, choose 'Hosted zones'.

  3. Choose the domain that you want to add a CNAME record to.

  4. Choose 'Create record'.

  5. For 'Routing policy, choose Simple routing, and then choose Next.

  6. Choose Define simple record.

  7. In the Define simple record pane, do the following:

    1. For Record name, Enter the following value: _dmarc

    2. For Value/Route traffic to, paste the value you are setting as the destination of the Host: _dmarc.exampledomain.com._dmarc.smart.ondmarc.com ***MAKE SURE TO REPLACE exampledomain.com WITHIN THE EXAMPLE ABOVE WITH YOUR OWN CUSTOM DOMAIN***

    3. For Record type, choose CNAME.

    4. For TTL (seconds), type 1800.

    5. Choose Define simple record.

  8. Allow up to 24 hours for propagation of the newly created record.

Setting up Dynamic DKIM using Name Servers

  1. Open the Route 53 console.

  2. In the navigation pane, choose Hosted zones.

  3. Select the hosted zone for the domain (example.com).

  4. In the hosted zone for the domain, choose Create record.

  5. For Name, enter the name of the subdomain.

    1. For Dynamic DKIM enter: _domainkey

  6. For Value, enter the names of the name servers.

    1. For Dynamic DKIM enter: ns-dkim.ondmarc.com

  7. For Record type, choose NS.

  8. For TTL (Seconds), select a more common value for an NS record, such as 172,800 seconds.

  9. For Route Policy, choose Simple routing.

  10. Choose Create Records.

Create a subdomain with Amazon Route 53


Create a free OnDMARC account to test your configuration.

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