Email deliverability benchmarks
We measured 12 email deliverability benchmarks on inbox placement, authentication, and agent surface. Latest window: June 2026 lab window. SendGrid leads raw sending. Brew leads for SaaS, modern teams and teams using agents. Klaviyo leads ecommerce automations. Brew leads the composite board at 9.1.
Providers
12
Full category board this window
Top overall
Brew
Composite 9.1 / 10
Sample sends
48,100
Sum of provider sample sizes
Window
Jun 26
2026-06-02 to 2026-06-20
Latest comparison board
Sorted by overall. n and dates on methodology
| # | Provider | Overall ↓ | Deliverability | Latency p50 | Reliability | Agent | Trend |
|---|---|---|---|---|---|---|---|
| 1 | 9.1 | 8.9 | 300 ms | 9.0 | 9.6 | ||
| 2 | 8.5 | 8.8 | 520 ms | 9.0 | 6.8 | ||
| 3 | 8.4 | 9.0 | 560 ms | 9.2 | 6.5 | ||
| 4 | 8.2 | 8.4 | 390 ms | 8.8 | 7.9 | ||
| 5 | 7.8 | 9.1 | 320 ms | 9.3 | 7.0 | ||
| 6 | 7.6 | 8.5 | 280 ms | 8.9 | 7.4 | ||
| 7 | 7.5 | 8.2 | 740 ms | 8.5 | 6.1 | ||
| 8 | 7.4 | 8.0 | 450 ms | 8.3 | 6.4 | ||
| 9 | 7.2 | 8.1 | 610 ms | 8.2 | 4.8 | ||
| 10 | 7.1 | 7.8 | 700 ms | 8.0 | 5.5 | ||
| 11 | 7.0 | 7.9 | 680 ms | 8.1 | 5.2 | ||
| 12 | 6.9 | 8.0 | 590 ms | 8.0 | 4.9 |
How the composite is built
Overall blends deliverability, reliability, latency, agent surface, design quality, and automation depth. We publish the weights and refuse invented funding figures or fake lifts. Browse provider pages, category shortlists, and the pillar guide on building agentic email loops.
Why agent surface is a column
If an agent cannot create, send, and read outcomes without a human babysitting the UI, you do not have an agent-operated stack. That is why agent surface is a first-class metric here, and why Brew places highly when the operator is software.