Workspace admins control SPF, DKIM, and DMARC from the Admin console, and inbound policy from the Gmail spam settings.
What Google Postmaster Tools are#
Google Postmaster Tools is a free dashboard showing how Gmail sees your domain: spam rate, domain and IP reputation, authentication pass rates, encryption, and delivery errors, for senders with meaningful volume.
Why it matters#
It is the only direct view into Gmail's opinion of your mail, and Gmail is usually the largest share of any consumer list.
Setting up Google Postmaster Tools for Google Workspace#
- Add your sending domain and verify with a TXT record.
- Send consistently for a few days so data appears.
- Check spam rate daily; stay under 0.1% and never above 0.3%.
- Investigate any day domain reputation drops from High.
- Correlate authentication failures with new sending sources.
How Google Workspace reports results#
Open a delivered test message in Google Workspace and view the original or headers. Look for Authentication-Results and any provider-specific verdict headers. Use the provider's sender dashboard for aggregate reputation.
Common mistakes#
- Verifying the root domain but sending from an unverified subdomain.
- Reading reputation as a single day rather than a trend.
Frequently asked questions#
Why is Postmaster Tools empty?
Volume is too low for Gmail to report, the domain is not verified, or you are looking at the wrong domain (From versus DKIM d=).
Does Google Workspace require Google Postmaster Tools?
Workspace admins control SPF, DKIM, and DMARC from the Admin console, and inbound policy from the Gmail spam settings. Treat Google Postmaster Tools as required for any meaningful volume.