A DMARC record tells inbox providers what to do with emails that fail SPF or DKIM authentication. Here is how to add one in Google Domains.
Steps
- Go to Google Domains and sign in.
- Select your domain from the list.
- Click DNS in the left-hand menu.
- Scroll to Custom Records and click Manage custom records.
- Add a new TXT record with the following details:
- Type: TXT
- Host Name: _dmarc
- TTL: leave as default (3600)
- Data: your DMARC policy

- Replace the example email in the DMARC policy with your own address to receive aggregate reports (for example, support@yourdomain.com).
- Click Save.
