To enable DMARC for your domain, you must add a TXT record to your domain’s DNS entries that contains the DMARC configuration data. To do this, follow these steps:
DMARC is not yet a fully standardized protocol. As a result, different providers handle DMARC policies in different ways. You may have to experiment with various DMARC configurations to find the one that works best for your domain. Here are some example DMARC configurations:
After you add the DMARC TXT record and allow time for DNS propagation, you should test that the record is correctly configured. Follow the appropriate procedure below for your computer’s operating system.
If you are using Microsoft Windows, type the following command at the command prompt:
At the nslookup > prompt, type the following commands. Replace example.com with your own domain name:
You should see output that resembles the following (the exact text varies based on your own settings):
_dmarc.example.com text =
If you are using Linux or Mac OS X, type the following command at the command prompt. Replace example.com with your own domain name:
dig +short txt _dmarc.example.com
"v=DMARC1\; p=none\; rua=mailto:email@example.com"
If you administer a mailing list, you may encounter problems such as:
To help improve the likelihood of mailing list messages arriving at their correct destination, you can configure a mailman setting in cPanel to make your list DMARC-compatible with other providers.
To do this, follow these steps:
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