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Deliverability Score Estimator

A quick rule-based score (not Google's actual algorithm — nobody has that) that flags the configuration combinations that historically land mail in spam.

Estimated deliverability score
80/100
  • DMARC missing or p=none (-15)
What it does

Combines binary inputs (SPF pass, DKIM signed, DMARC aligned, dedicated IP, warmed sender) with rate inputs (complaint rate, bounce rate, daily volume) into a 0–100 estimate with the specific failing factors called out.

When to use

Pre-flight check before scaling a new sending domain. Diagnosing why a previously-good sender suddenly hit spam.

FAQ

Is this Google's actual deliverability score?+

No — Google and Microsoft don't publish their scores. This is a rule-based estimate based on the factors that mailbox-provider documentation says they weight. Treat it as a checklist, not a guarantee.

What complaint rate triggers spam folder?+

Above 0.3% (3 in 1000) at Gmail. Above 0.1% (1 in 1000) at Microsoft. These numbers come straight from Postmaster Tools and SNDS.

You ran the math. Outsolvi makes it real.

Calculators tell you what the number should be. Outsolvi tells you what your number actually is — confidence-scored opens, real reply sentiment, live deal-level signal across Outlook and Gmail. From $7/user/mo yearly, 14-day free trial.

See it on your own inbox
Nate SummersCo-Founder, Outsolvi

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.

Last reviewed May 25, 2026Editorially independent

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.