Google Feedback Loop (FBL) Explainer
Senders keep asking 'where's Google's FBL?'. The answer is they don't have one in the classic sense, and Postmaster Tools is the substitute.
Google does not run a per-message feedback loop like Yahoo CFL or Microsoft JMRP. They never have. The closest thing is Postmaster Tools' aggregate Spam Rate dashboard.
- Spam Rate: aggregate % of your mail Gmail users marked as spam, over a rolling window. Below 0.1% green, 0.1-0.3% yellow, above 0.3% red.
- IP Reputation: per-sending-IP score derived from Spam Rate + other signals.
- Domain Reputation: same, scoped to your sending domain.
- Authentication: SPF/DKIM/DMARC pass rates.
No per-recipient detail. You can't suppress individual complainers; you can only watch trends and reduce overall send to recover.
You know the rule. See where you sit against it.
Reference pages tell you the benchmark. Outsolvi tells you whether your team is above or below it. per-rep, per-deal, per-week. and which behavior changes move the number. From $7/user/mo yearly.
See your numberExplains what Postmaster Tools' spam-rate dashboard surfaces, why it isn't per-message FBL data, and how to act on the aggregate signal.
After someone tells you to 'enroll in Google FBL'. The conversation needs a reset.
FAQ
How do I enroll in Google's feedback loop?+
You can't, because Google doesn't run one in the classic per-message sense the way Yahoo CFL or Microsoft JMRP do. Anyone telling you to enroll is thinking of a different provider.
What do I get instead?+
Postmaster Tools, which shows an aggregate spam rate, IP reputation, domain reputation, and authentication pass rates. Below 0.1 percent spam rate is the green zone and above 0.3 percent is trouble.
Can I suppress the specific Gmail users who complained?+
No, and that's the real limitation. Postmaster Tools gives you trends, not per-recipient detail, so the only lever is reducing volume and tightening targeting until the aggregate rate recovers.
Keep going
Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.