--- title: Google Postmaster Tools description: How to track deliverability to Gmail and Google Workspace accounts. --- [Skip to content](https://support.warmy.io/knowledge/google-postmaster-tools#main-content) English Show submenu for translations ![Group 1261151152.png\]](https://support.warmy.io/hs-fs/hubfs/Group%201261151152.png?width=50&height=50&name=Group%201261151152.png) Open main navigation Close main navigation - English Show submenu for translations - [Go to warmy.io](https://www.warmy.io/) [Go to warmy.io](https://www.warmy.io/) Hey there Warmer! How can we help? 🙏 - There are no suggestions because the search field is empty. 1. [Help Center](https://support.warmy.io/knowledge?hsLang=en) 2. [General questions](https://support.warmy.io/knowledge/general-questions?hsLang=en) # Google Postmaster Tools ## How to track deliverability to personal Gmail accounts. ### **What is Google Postmaster Tools?** Google Postmaster Tools is a free service provided by **Google** to help domain administrators and email senders improve their email deliverability to **Gmail** users. The tool provides information on various metrics related to email delivery, including spam rate, authentication, encryption, delivery errors, feedback loop data, and compliance status. ### **Some of the features of Google Postmaster Tools include:** 1. Spam Rate: the percentage of emails sent by the sender that are marked as spam by Gmail users. 2. Authentication: whether the sender is using SPF, DKIM, and DMARC. 3. Encryption: whether the sender is using TLS encryption to protect emails during transmission. 4. Feedback Loop: feedback on messages marked as spam; see Feedback Loop below. 5. Compliance Status: whether your sending setup meets Google's sender requirements — see Compliance Status below. Domain Reputation and IP Reputation are no longer available in Google Postmaster Tools v2, and Google no longer provides this data through the API. Warmy is building its own AI-powered Domain Reputation Score, which will initially focus on Gmail domain reputation. You can learn more about these changes in our article,[**“Google Postmaster Retired Domain Reputation. Warmy Is Building Its Own.”**](https://www.warmy.io/blog/google-postmaster-retired-domain-reputation-warmy-is-building-its-own/) By using **Google Postmaster Tools**, senders can gain insights into how **Gmail** handles their emails, and take steps to improve their email **deliverability** and avoid being marked as **spam**. ### How to connect Google Postmaster to Warmy? ### ![](https://support.warmy.io/hs-fs/hubfs/image-png-Mar-04-2026-04-44-56-5678-PM.png?width=670&height=385&name=image-png-Mar-04-2026-04-44-56-5678-PM.png) In our dashboard, you can [connect Google Postmaster](https://support.warmy.io/knowledge/how-to-add-a-new-domain-to-google-postmaster-and-how-to-share-it-with-others?hsLang=en) (GPM) and track all metrics in one place: GPM data, warm-up statistics, and overall sending performance. This makes it easy to compare results! Google Postmaster Tools only displays data for emails sent to personal Gmail accounts (@gmail.com or @googlemail.com). If your sending volume to personal Gmail accounts is too low, some dashboard data may not be available. **Note:** When connecting your domains to Google Postmaster Tools, you may be prompted to verify using different addresses from our pool. This is completely normal and does not affect anything ![](https://support.warmy.io/hs-fs/hubfs/image-png-Aug-10-2026-03-48-31-9988-PM.png?width=670&height=771&name=image-png-Aug-10-2026-03-48-31-9988-PM.png) After connecting Google Postmaster Tools to Warmy, it may take up to 24 hours for the data to appear in your Warmy account while we collect and process the available information. ### **GPM v2: new metrics now in Warmy** Google is retiring the original Postmaster Tools API (v1) and moving senders to a new API version with different metrics. Warmy now surfaces two new GPM v2 data points directly in your dashboard, alongside your existing GPM data: #### **✍️ Compliance Status** Compliance Status shows whether your sending setup meets Google's email sender guidelines, broken down requirement by requirement — so you can see exactly what needs fixing. It's available to all senders, including bulk senders (roughly 5,000+ messages/day to personal Gmail accounts). **Requirements checked** *For all senders:* SPF and DKIM authentication, DNS records, message formatting, encryption, user-reported spam rate. *For bulk senders only:* DMARC authentication, one-click unsubscribe, honor-unsubscribe. **Statuses shown in Warmy** | Status | What it means | | --- | --- | | ✅ **Compliant** | Requirement is met — no action needed. | | ⚠️ **Warning** | "Needs work": setup doesn't fully meet the requirement yet; can take up to 7 days to update after a fix. | | 🔺 **Non-Compliant** | One or more requirements are not met. | Note: Compliance data applies to messages sent to personal Gmail accounts only, is calculated at the primary domain level (not per subdomain), and can take up to 24 hours, or up to 7 days after a fix to update. Once you've [connected Google Postmaster to Warmy](https://support.warmy.io/knowledge/how-to-add-a-new-domain-to-google-postmaster-and-how-to-share-it-with-others?hsLang=en), Compliance Status appears as a summary (e.g. "5/7 Compliant, 1 Warning, 1 Non-Compliant") plus a table with Requirement / Status / Details columns. ![867\_1x\_shots\_so](https://support.warmy.io/hs-fs/hubfs/867_1x_shots_so.png?width=670&height=503&name=867_1x_shots_so.png) For full troubleshooting detail, see Google's **[Compliance Status dashboard documentation](https://support.google.com/mail/answer/15013575).** #### ✍️ **Feedback Loop** Feedback Loop shows the spam rate for individual email campaigns, rather than one blended number for your whole domain. Each campaign is tagged with a Feedback Loop ID, so you can see which specific campaigns are driving spam complaints. This requires [Feedback Loop to be set up on the sending side](https://support.google.com/a/answer/6254652) first; Warmy can't backfill this retroactively. **What's shown:** - **Average FBL spam rate** — average spam rate across all campaigns, per day, over time. - **Identifier volume** — number of unique campaign IDs seen per day. - **Aggregated views** — "From header domain" vs. "All signed domains," useful for spotting authentication-related issues. In Warmy, this is shown as a graph across all campaigns, with the ability to **filter by a specific campaign**. Click a data point to drill into that campaign's detail.  ![832\_1x\_shots\_so](https://support.warmy.io/hs-fs/hubfs/832_1x_shots_so.png?width=670&height=503&name=832_1x_shots_so.png) A few things that look like problems but often aren't: - Spam rate drops to 0 suddenly — usually means Gmail is now filtering most mail to Spam automatically, so fewer messages reach an inbox to be reported. Not necessarily a sign of good deliverability. - Spam rate low, deliverability still poor — same cause as above; check other deliverability signals, not just this number. For full troubleshooting (mismatched third-party reports, missing feedback loop IDs, etc.), see Google's [Feedback Loop dashboard documentation](https://support.google.com/mail/answer/15082917). --- ### How to compare these stats with Warmy? In our dashboard, you can [connect Google Postmaster](https://support.warmy.io/knowledge/how-to-add-a-new-domain-to-google-postmaster-and-how-to-share-it-with-others?hsLang=en) (GPM) and track all metrics in one place — including Compliance Status and Feedback Loop — alongside your warm-up statistics and overall sending performance. 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