If you rely on email to reach your audience, here’s one recent change worth knowing: Starting October 31st, the legacy version of Postmaster Tools (v1) will no longer be available.
At first glance, that might sound like a purely technical update — the kind of thing only deliverability engineers lose sleep over. But it’s actually a meaningful shift in how Gmail surfaces, interprets, and communicates sender reputation and could affect your deliverability.
So let’s break down what’s changing and why it matters.
First, what is Google Postmaster Tools?
Postmaster Tools is Google’s dashboard that shows analytics on the health of emails sent to Gmail users.
It reports on things like:
- Spam
- Authentication status (SPF, DKIM, DMARC)
- Delivery Error
- Encryption
- Domain and IP reputation
The data helps bulk email senders understand how Gmail views your sending behavior.
What happened: Postmaster v1 retired
On September 30, 2025, Google started to officially retire Postmaster Tools v1 and redirected everyone to v2. Google has since announced that the legacy version will no longer be available after October 31st. That means that the Domain Reputation and IP Reputation dashboards are gone.
What’s replacing it: Postmaster Tools v2
Google’s new Postmaster Tools v2 direction is clear: fewer vanity scores, more compliance-driven insights.
What’s available
Compliance Status dashboard (New)
This is a new, simpler view showing whether you are in compliance with Gmail’s bulk sender requirements. It’s less about “reputation” and more about “are you following the best practices guidelines?”
Spam
Graphical reporting on the provides two graphs to track the Average Feedback Loop Spam rate across any identifiers (specific campaigns, customers, or “other”) flagged by the FBL. It also displays an Identifier Volume Graph that shows the number of unique identifiers broken down by day. Learn how to use the Feedback Loop dashboard.
Feedback Loop
Graphical reporting on the average Feedback Loop (FBL) spam rate across any identifiers) flagged by the FBL. It also displays an Identifier Volume Graph showing the number of unique identifiers broken down by day.
Authentication status (SPF, DKIM, DMARC)
The dashboard shows traffic that passed SPF, DKIM & DMARC, over all received traffic that attempted authentication.
Encryption/TLS usage
Reporting the percentage of your inbound and outbound traffic is encrypted.
Delivery errors (bounces and rejections)
Dashboard shows the percentage of total emails rejected or temporarily failed as compared to all authenticated traffic.
API updates
A new API will eventually replace the existing v1 version.
Why Google made this change
In short: Google wants senders to focus on real compliance and engagement — not chasing reputation scores.
The classic IP and domain dashboards may have oversimplified a complex story. Two senders could have the same “good” score but very different user engagement or complaint patterns.
With v2, Google is pushing senders to take more responsibility for the fundamentals:
- Authentication (SPF, DKIM, DMARC)
- Clean lists and low complaint rates
- Respectful unsubscribe practices
- Consistent, expected content
The move aligns with Gmail’s broader focus on user experience. If people keep positively engaging with your emails — scrolling, reading, forwarding, replying — not marking them as spam — that’s your best “score.”
Why this matters (even if you’ve never looked at Postmaster)
So, you might be wondering: If I’m not using Postmaster Tools, do these changes affect me at all?
Yes — indirectly, but meaningfully.
- The “reputation warning light” is going away for now.
If your team or your email provider monitored Domain Reputation to detect early issues, that safety net would disappear. You’ll need to rely on other signals (like complaint rates or engagement drops) to spot trouble early.
- Deliverability issues may be more challenging to detect.
Without a visible “bad reputation” status, problems might only show up once they affect inbox placement. Google wants senders to focus on their emails reports and follow email best practices — not chasing reputation scores
- Compliance expectations are getting higher.
Gmail’s sender guidelines, positive engagement, domain authentication, low complaint rates — will continue to drive inbox placement.
What you can do now
Even if you have not used Postmaster Tools yourself, a few simple steps can help you stay ahead:
1. Confirm your authentication setup
Make sure your sending domains use SPF, DKIM, and DMARC, and that those records are valid. If you’re using Omeda to send emails, SPF, DKIM and DMARC are automatically set up for your domains.
2. Keep an eye on complaint rates
If you notice rising spam complaints, treat it as a red flag. High complaint rates are one of Gmail’s strongest negative signals.
3. Prioritize list hygiene
Inactive addresses, old lists, or disengaged subscribers all hurt deliverability over time. Regularly trim or re-engage inactive segments.
4. Make unsubscribing easy
The unsubscribe link in the HTML should be clearly visible. You want your customers to unsubscribe rather than hit the spam button.
How Omeda can help
If you’re not sure where to start — or you just want someone to walk you through what’s changing — Omeda’s email experts are here to help. If you’re a client, reach out to your CSM. If you’re not a client yet, talk to an expert.
We can:
- Explain how Postmaster v2 can correlate to your deliverability tracking
- Offer best practices to keep your email performance steady
The bottom line
Google isn’t trying to make life harder for senders — it’s just shifting the emphasis from reputation scores to real-world sending practices.
Strong authentication, clean lists, relevant content, and low complaint rates will continue to earn you inbox placement. What’s changing is how Gmail shows (or doesn’t show) that reputation back to you.
If you’d like help understanding what this means for your email campaigns, reach out to your Omeda client success manager or our email deliverability team. We’ll help you translate Google’s latest changes into a plan that keeps your messages where they belong — in the inbox. You can find more information directly from Google.
