Does Google Postmaster Tools (GPT) data include Google Workspace accounts, or only Gmail.com accounts?
Michael Ko
Co-founder & CEO, Suped
Published 24 Jun 2025
Updated 19 Aug 2025
8 min read
When delving into email deliverability, understanding the data provided by tools like Google Postmaster Tools (GPT) is crucial. A common question that arises among senders, especially those in the B2B space, is whether GPT includes data from Google Workspace accounts or if it's strictly limited to personal Gmail.com addresses. This distinction is vital for accurately assessing your email program's performance and making informed optimization decisions.
Historically, there has been some ambiguity and conflicting information regarding the scope of GPT data. Many believed that the data was exclusively derived from consumer Gmail.com accounts, due to past documentation and perceived data ownership restrictions concerning corporate accounts. This led to a common misconception that B2B senders, whose primary recipients are often Google Workspace users, would see little or no relevant data in the tool.
However, based on current understanding and observations, Google Postmaster Tools data does indeed include activity from Google Workspace accounts, particularly concerning domain and IP reputation. While the full spectrum of data points may not be uniformly sourced from both Gmail.com and Google Workspace, the tool provides valuable insights for senders targeting corporate Google mailboxes. This represents an important evolution, making GPT a more comprehensive resource for a wider range of email programs.
Interpreting Google Postmaster Tools data
Google Postmaster Tools is designed to help senders monitor their email performance and diagnose deliverability issues within Google's ecosystem. It provides various dashboards, including IP reputation, domain reputation, spam rate, feedback loop, delivery errors, and authentication. For these metrics to populate, a sufficient volume of email needs to be sent to Gmail users, which Google defines as recipients with either an @gmail.com or a Google Workspace account.
The key insight, confirmed by Google employees, is that the domain reputation data in GPT does indeed incorporate signals from Google Workspace customers. This is particularly relevant for B2B senders who might not be sending large volumes to personal Gmail addresses but have significant traffic to corporate Google Workspace domains. Seeing populated data in dashboards like IP and domain reputation, spam rate, and delivery errors for mail sent exclusively to Google Workspace recipients indicates this expanded coverage.
While Google Postmaster Tools provides a unified view, it is still crucial to understand the nuances of how data might be weighted or reported differently between personal Gmail.com and Google Workspace accounts. For instance, specific complaint data might primarily reflect consumer user feedback, whereas broader reputation metrics are more likely to integrate signals from both. This makes GPT an indispensable tool for anyone sending email to a Google-hosted mailbox.
The expanding scope of Google's data
The evolution of Google Postmaster Tools' data coverage aligns with Google's ongoing efforts to improve email security and deliverability across all its services. The unified approach helps senders maintain a good reputation whether they are reaching personal users or business clients. This is especially pertinent with new sender requirements from Google and Yahoo taking effect in 2024, which apply to all Google-hosted email accounts.
The removal of specific references to only "@gmail.com" in the official GPT documentation further supports this broader inclusion. This suggests a more integrated view of email traffic, acknowledging that Google Workspace accounts are a significant part of the overall Google mail ecosystem. Senders who once disregarded GPT because they thought their target audience was primarily Google Workspace users should now revisit their strategy.
This expanded scope means that B2B senders can gain valuable insights into how their emails are performing when sent to corporate Google Workspace domains. If your emails are authenticated correctly with SPF, DKIM, and DMARC, and you're sending sufficient volume, you should see data populate in GPT, offering a clearer picture of your standing with Google. If GPT is not showing data, it might be due to low volume or authentication issues rather than exclusion of Workspace data.
Understanding data inclusion
Google Workspace and Gmail.com are increasingly treated as a unified ecosystem for reputation scoring. This means signals from both types of accounts contribute to your overall standing with Google. This is especially true for IP and domain reputation metrics. If you are a B2B sender, your emails to Google Workspace accounts will influence your GPT metrics.
B2B implications
This expanded coverage directly benefits B2B senders. Previously, many felt GPT was less relevant if their audience was primarily corporate. Now, they can confidently use GPT to monitor their performance and troubleshoot deliverability challenges specifically related to their B2B traffic. It offers insights into how their emails are being received by business domains hosted on Google's infrastructure.
Why Google Workspace data matters for deliverability
For B2B senders, Google Postmaster Tools now offers a more complete picture of their email deliverability to Google destinations. This means that if you're sending transactional, marketing, or bulk emails to domains that use Google Workspace, the reputation you build (or lose) with those recipients will be reflected in your GPT dashboards. This comprehensive view is essential for understanding your overall sender health within the Google ecosystem.
While GPT's primary focus is on how Google perceives your sending practices, it's also a reflection of your overall email program quality. Even if you primarily send to Google Workspace accounts, consistent issues like high spam rates or delivery errors reported in GPT can indicate broader problems with your list hygiene, content, or authentication. Addressing these issues will benefit your deliverability across all recipients, not just Google ones.
The data in GPT serves as a critical early warning system. Monitoring your domain and IP reputation regularly can help you identify potential problems before they escalate into widespread blocking or spam folder placement. This proactive approach is essential for maintaining strong sender reputation and ensuring your emails reach their intended inboxes, whether they are personal or corporate Google accounts.
Gmail.com data
Consumer focus: Primarily reflects how personal Gmail.com users interact with your emails, including spam complaints directly reported by users.
Spam reports: Feedback loop data might be heavily weighted by these user-initiated spam reports.
Volume requirements: Requires consistent email volume to Gmail.com addresses for metrics to appear.
Google Workspace data
Business focus: Reflects how corporate Google Workspace domains receive your email, including internal filtering and security measures.
Domain and IP reputation: These are the key metrics confirmed to include data from Workspace accounts, providing a comprehensive view of your sender standing.
B2B relevance: Essential for senders whose primary audience uses custom domains hosted on Google Workspace.
Leveraging GPT for all Google destinations
To effectively use Google Postmaster Tools for both Gmail.com and Google Workspace accounts, ensure your sending domains are properly verified and authenticated. This means having valid SPF, DKIM, and DMARC records configured for your sending domains. These authentication protocols are fundamental to establishing sender legitimacy and ensuring your emails are trusted by Google's filters, regardless of the recipient's account type. Without proper authentication, GPT may not populate any data, regardless of volume.
For example, a simple DMARC record, even with a policy of p=none, allows you to receive valuable aggregate reports that can shed light on your email streams, including potential authentication failures. This data, combined with insights from GPT, provides a holistic view. If you are struggling with DMARC issues, they will likely impact your standing in GPT.
By actively monitoring Google Postmaster Tools and understanding that it now encompasses both personal Gmail and Google Workspace data, you can significantly enhance your email deliverability strategy. This expanded data coverage ensures that all your sending efforts to Google-hosted mailboxes are accurately reflected, enabling you to build and maintain a robust sender reputation across the board. Staying informed about your metrics in GPT is a proactive step toward consistent inbox placement.
Views from the trenches
Best practices
Actively use GPT for B2B sending domains. The inclusion of Google Workspace data makes it highly relevant for monitoring corporate email deliverability.
Verify all sending domains in GPT, including any subdomains, to ensure comprehensive data collection for your email program.
Regularly review your IP and domain reputation in GPT. These metrics are the most reliable indicators of your overall standing with Google for both Gmail and Workspace.
Implement robust email authentication (SPF, DKIM, DMARC) for all sending domains. This is foundational for data to appear in GPT and for good deliverability.
Common pitfalls
Assuming GPT data is only for consumer Gmail.com accounts, causing B2B senders to overlook a critical source of insights.
Ignoring low data volume warnings in GPT, which can indicate insufficient traffic to Google mailboxes to generate meaningful reports.
Not aligning DKIM and SPF with your From: domain, which can hinder data aggregation in GPT dashboards.
Failing to monitor your spam rate in GPT, which provides direct feedback on how Google users perceive your emails, regardless of account type.
Expert tips
Domain reputation in GPT includes Google Workspace data, helping B2B senders monitor their standing.
GPT data sources have evolved; older information stating only Gmail.com is outdated.
Ensure sufficient volume is sent to Google destinations to populate GPT dashboards.
IP reputation, spam rate, and delivery errors from Workspace accounts can appear in GPT.
Expert view
Expert from Email Geeks says Google Postmaster Tools analyzes data across both Gmail and Google Workspace mailboxes, so if B2B traffic to Workspace is sufficient, statistics will be available.
February 7, 2022 - Email Geeks
Expert view
Expert from Email Geeks says a Google employee confirmed that domain reputation data includes information from Google Workspace customers, though other data types might not.
February 7, 2022 - Email Geeks
Final thoughts on Google Postmaster Tools
The question of whether Google Postmaster Tools data includes Google Workspace accounts or only Gmail.com accounts has evolved over time. While there was past confusion, current understanding and empirical evidence confirm that GPT does indeed incorporate data from Google Workspace accounts, particularly for crucial metrics like domain and IP reputation.
This expanded scope means that both B2C and B2B senders should consider Google Postmaster Tools an indispensable part of their email deliverability toolkit. By offering a comprehensive view of how Google's systems perceive your emails across all its hosted mailboxes, GPT enables senders to proactively identify and address potential issues, maintain a strong sending reputation, and ultimately improve inbox placement.
Ensuring proper authentication and consistently monitoring your GPT dashboards will provide the insights needed to navigate the complexities of email deliverability effectively. This unified data approach underscores Google's commitment to providing senders with the tools necessary to ensure legitimate emails reach their intended recipients, regardless of whether they are personal or business users.
