Add a TXT record at Microsoft 365 (domains bought through it)
Where: Microsoft 365 admin center → Settings → Domains → your domain → DNS records
Steps
- Click Add record.
- Type: TXT.
- TXT name: _dmarc. For SPF use @.
- TXT value: paste the record.
- Save.
Watch for
- This only applies if Microsoft hosts the domain’s DNS. If your DNS is at a registrar, add the record there.
Screens change from time to time; if yours differs, Microsoft 365 (domains bought through it)’s own help is the authority. When the record is in, check it with the DMARC checker; DNS changes can take a few minutes to appear.