Without Google Postmaster Tools, you will lack valuable insight into your reputation with Gmail. Unlike other Inbox Providers, Gmail does not directly tell you who complained or reported your emails as spam. Instead, you can view your “Spam Rate” in Google Postmaster Tools. Too many complaints can lead to poor Email Deliverability. Gmail is the largest Inbox Provider in the world, so any additional insights we are able to gain as Email Senders should be taken advantage of.

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How to connect Google Postmaster Tools

1

Go to https://gmail.com/postmaster/ and click “Get Started”.
2

Input the subdomain that you have set up with OneSignal.

mail.domain.com (subdomain) vs domain.com (root domain)

3

Click “Next” and Google will provide a TXT record on the next page for you to create in your DNS records.
  • This will be created in your DNS registrar used for hosting your domain and will verify your ownership.
4

Once you have created the provided TXT record in your DNS records, click “Verify”
5

Lastly, add mailmonitor@onesignal.com as a “managed user”.
  • This gives OneSignal view only access and allows us to help monitor your reputation on your behalf.

Click "Managed Users"

Add mailmonitor@onesignal.com as a managed user

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Monitor spam rate

If your emails are landing in Gmail spam folders, Google Postmaster Tools may offer insight. The Spam Rate represents a percentage of your mail volume that is actively being reported as spam on a given date by Gmail recipients. Google States “Keep spam rates reported in Postmaster Tools below 0.10% and avoid ever reaching a spam rate of 0.30% or higher.” in their Email Sender Guidelines

Gmail Spam Rate

A very concerning Spam Rate may look like below, where the peaks are consistently over the thresholds recommended by Gmail.

Very High Gmail Spam Rate!

Learn How to Lower Spam Complaint Rates

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FAQ