Get alerted when your Gmail spam rate climbs or your domain starts failing Google's sender requirements.
Google Postmaster Tools is Google's report card for the mail you send to Gmail. It shows the spam rate Gmail users report for your domain, how much of your mail Gmail rejects, and whether you meet the sender requirements Google enforces on bulk senders.
Google's line is simple: keep your user-reported spam rate under 0.10% and never let it reach 0.30%. Cross it and Gmail starts filtering or rejecting your mail. Most teams only open the dashboard after delivery has already dropped, usually because a customer asked why your emails stopped arriving.
Alerts when the rate Gmail users report as spam crosses your threshold. Defaults follow Google's 0.10% guidance, so you have room to act before 0.30%.
Alerts when Google marks your domain as failing a sender requirement, including SPF, DKIM, DMARC, and one-click unsubscribe.
Tracks delivery errors and SPF, DKIM, DMARC, and TLS rates, with 90 days of charts from the day you connect.
Connect your Google account with read-only access, pick your domains, and we import your Postmaster Tools data every day. Alerts go to the same email, Slack, SMS, or webhook contacts as your blacklist alerts. Sending to Outlook too? Pair it with Microsoft SNDS monitoring.
Every paid Blacklist Monitoring plan.
Yes. Your domains need to be verified in Google Postmaster Tools. Once they are, connecting takes a couple of clicks.
No. Alerts only fire once a domain sends enough mail in a day for the numbers to mean something.
Google publishes Postmaster Tools data with a one to three day delay. We import it every day.
Postmaster Tools monitoring is included with every paid Blacklist Monitoring plan, alongside hundreds of other data sources.