What is a reporting address?
Each domain in DMARC Digests has a unique reporting address. This address should be added to the rua tag within your DMARC record (as shown below) to tell receivers where they should send DMARC reports for your domain.
v=DMARC1; p=none; pct=100; rua=mailto:firstname.lastname@example.org; sp=none;
Ensure you include the mailto: prefix before the address.
Specify multiple addresses in the rua tag by separating them with commas.