Will your emails reach the inbox? Free email deliverability check in 5 seconds.
A free audit of your domain's sending setup — and independent, measured deliverability rankings of the platforms that send your email.
SPF · DKIM · DMARC · MX · reverse DNS · BIMI — free, no signup, nothing stored
Email services by measured deliverability
Full ranking · 44 services| # | Service | Deliverability | Inbox rate | Gmail | Outlook | Yahoo | User rating |
|---|---|---|---|---|---|---|---|
| 1 | ActiveCampaign | 94 | 94.4% | 97 | 89 | 94 | 3.6 |
| 2 | Postmark | 93 | 96% | 87 | 94 | 96 | 3.3 |
| 3 | Constant Contact | 92 | 93.8% | 96 | 91 | 94 | 4.1 |
| 4 | SMTP2GO | 92 | 95.3% | 97 | 84 | 96 | 4.8 |
| 5 | Moosend | 91 | 94.7% | 95 | 96 | 93 | 3.8 |
| 6 | SendPulse | 91 | 95% | 100 | 75 | 95 | 4.5 |
| 7 | CleverReach | 87 | 91.1% | 75 | 97 | 87 | 3.9 |
| 8 | GetResponse | 87 | 90.9% | 89 | 92 | 92 | 4.3 |
| 9 | Kit | 85 | 89.3% | 79 | 81 | 80 | 4.3 |
| 10 | Klaviyo | 85 | 89.7% | 90 | 65 | 89 | 3.2 |
Showing top 10 of 44 services
Tested September 2026 · seed-list inbox placement
We send real campaigns through every platform to a controlled seed list and publish what percentage actually reached the inbox.
- Inbox — landed in the primary inbox
- Tabs — Promotions and similar folders
- Spam — junk-folder placement
- Missing — accepted, then vanished
- Bounced — rejected at send time
Free deliverability tools
All 15 toolsLatest deliverability news
All news2026-09-24 · TDS Telecom — Email FAQ
TDS Telecom ends its email service: tds.net and other addresses move to paid EverymailTDS is discontinuing subscriber email on October 31, 2026. Users who didn't subscribe to Everymail by September 30 lose their tds.net, bendbroadband.com and other addresses — expect bounces from these domains.2026-09-14 · Apple Support
iOS 27 ships with Siri-driven Apple Mail: what email senders should watchApple released iOS 27 on September 14. Mail gains AI suggestions, relevance-ranked search and Siri actions — including deleting every email from a sender in one request.2026-09-03 · Validity (via PR Newswire)
Validity launches Heatwave, a blocklist aimed at synthetic domain warmingMore than one million domains are already listed, per Validity, and Comcast, Proofpoint, Spamhaus and SURBL are named among organizations using or evaluating the data.Measured, not estimated
Deliverability Scores come only from our seed-list placement tests. A service without a test shows “Not yet tested” — never a guess.
Two scores, never mixed
The Deliverability Score is measured. The Platform Score is an editorial rubric with published weights. Features never buy deliverability points.
Methodology in the open
The formula, the bands, the verification ladder and the test protocol are published — including our own documented failure modes.
Read the methodology — including our documented failure modes →
The vocabulary
Full glossarySPF·DKIM·DMARC·BIMI·SMTP·MX records·PTR records·Dedicated IP·IP reputation·Domain reputation— defined the way we use them in tests and reviews.