How to Setup Google Postmaster Tools?

This guide explains how to add your sending subdomain (for example hello.domain.com) to Google Postmaster Tools, and how to grant read access to Batch's team.

Why This Matters

Google Postmaster Tools provides essential, Gmail-specific metrics - spam complaint rate, SPF/DKIM/DMARC authentication, TLS encryption - for your top sending destination. No other tool gives you this visibility: these metrics are unique to Postmaster Tools, and they're indispensable for monitoring your deliverability and reacting fast if something degrades.

Prerequisites

• A Google or Google Workspace account (corporate or team-shared) to sign in to Postmaster Tools V1.
• Access to the DNS zone for the domain in question (usually asking your backend team).
• The exact subdomain used for sending through Batch, e.g. hello.domain.com.
• The address to add with read access: [e-mail].

Note that, due to technical limitations on Google’s side, this setup is only possible through the Google Postmaster Tools V1 panel.

Add and Verify your Root Domain in Postmaster Tools

1. Sign in at postmaster.google.com to access Postmaster Tools. Check the account you are using in the top right corner to be sure it’s the one you want to use to register your domain.

1. Add your root domain if it is not added to Google Postmaster Tools yet.

1. In the "Domain Verification" window, copy the TXT record value Google provides (it usually starts with google-site-verification=).

1. Log in to the DNS management console for your subdomain (with your host or DNS provider: OVH, Cloudflare, GoDaddy, etc.).
2. Create a new TXT record, without removing your existing records. Save the change, then go back to Postmaster Tools and click Verify. Verification is usually immediate, but can take a few hours depending on DNS propagation.

Add your Subdomain in Postmaster Tools

Your root domain is already added and verified. You can simply add your subdomains. The subdomain will appear in your domain list with a "Verified" status (it inherits your root domain verification).

Do not create a separate record on a subdomain level it can create SPF verification issues.

Only add the TXT record on the root domain - a TXT record can't coexist with a CNAME at the same name, so adding it on a CNAME'd subdomain breaks SPF even though Postmaster Tools shows it as verified.

Traffic data won't appear in the dashboard until enough mail has been sent to Gmail addresses (typically 24 to 48 hours after verification, with a minimum sending volume). A successful verification with no visible data yet is not a problem in itself.

Grant Batch Read Access

It's important to share this data with us so that Batch's customer team has everything they need to guide you properly. Please note that Postmaster Tools reports do not expose any personal data, such as recipient email addresses. Once the subdomain is verified, you can invite other people to view its dashboard. To do so:

1. From the Manage Domains page in Postmaster Tools, find the row for your subdomain.
2. Click the « ⋮ » (More) icon to the right of the domain name, then click Manage users.

1. Click the + button in the bottom-right corner of the window.

1. Enter the following address [e-mail], then confirm.

1. Click Done. Access takes effect immediately.

Postmaster Tools does not automatically notify the person you add. Please let us know once access has been granted (by email or through your Batch contact) so our team can start monitoring. The access granted is read-only: Batch cannot modify or delete your configuration.

Sources :

• Google - Set up Postmaster Tools (Gmail Help) - official steps for domain setup, verification, and adding users
• Google - Set up Postmaster Tools (Gmail Help) - same page, covers "Manage users"
• Google Workspace Admin Community - Set up Postmaster Tools on behalf of a client
• Validity - Post up with our guide to Google Postmaster Tools