Add a TXT record at IONOS
Where: IONOS → Domains & SSL → your domain → DNS
Steps
- Click Add record.
- Type: TXT.
- Host name: _dmarc. For SPF use @.
- TXT value: paste the record.
- Save.
Watch for
- Changes can take up to an hour to show.
Screens change from time to time; if yours differs, IONOS’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.