This article will help you setup Mailgun Optimize to access your Google Postmaster data. To setup your domain to generate Google Postmaster data, please reference this article from Google.
1. Navigate to Google Postmaster Tools in Mailgun Optimize. Alternatively, you can use this direct link, particularly if you already logged into your account.
2. Click on the Authenticate with Google button.
3. Log in to your Google account that has access to the Google Postmaster data.
4. Click the Allow button to grant Mailgun Optimize access to your Google Postmaster data.
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