Google announced that they are officially closing the door on the old Google Postmaster Tools interface. On September 30, 2025, the familiar v1 dashboards will be gone, and all users will be redirected to the updated Postmaster Tools (v2), which launched last year.
The old Postmaster Tools web interface is scheduled for deprecation. All dashboards that existed in v1 have been ported into v2, with one notable exception: Domain and IP reputation dashboards. Google has retired these and says that they will introduce new dashboards designed to give senders more actionable insights.
The current Postmaster Tools API is also aligning with v2 data, and a brand-new v2 API will arrive before the end of 2025. At that time, the existing v1 API will be retired, requiring developers to update their integrations. More on this as we get additional information.
For most senders, the transition is seamless. You don’t need to lift a finger. When you log in after September 30, you’ll be automatically redirected to v2. Your existing data and dashboards will still be available, minus the retired features.
The upcoming v2 API is where things get interesting. It will support everything you’re used to from v1, but with expanded functionality. New endpoints include compliance status, Domain Management APIs, and Batch APIs. This will make it easier to scale monitoring, manage domains, and get more granular insights into your email program.
What you need to do
If you’re just a user of the dashboards, nothing. The transition happens automatically. Developers, however, should prepare for the v2 API migration. The new API has a different data schema, which means code changes are unavoidable. Google has promised comprehensive migration documentation before the v2 API launch.
No one likes change, change can be unsettling, especially when a tool you’ve relied on for years evolves. But v2 isn’t just a facelift—it’s an upgrade with more meaningful data for modern senders. Ready or not it’s time to explore what the new Google Postmaster Tools dashboards can reveal about your program’s performance.
