Set up SPF for Google Workspace
- Publish a single TXT record at your root domain.
- Use v=spf1 include:_spf.google.com ~all as the starting value.
- Merge any other sending services into this one record rather than adding a second.
- Google's include costs three of your ten DNS lookups, so keep the rest of the record lean.
Confirm it worked
DNS changes take time to propagate. Check the record once you have published it.
Google Workspace official documentation