Scored review
Resend review
TL;DR: Resend is a top developer pick. Brew still leads when marketers (or agents) must produce on-brand marketing campaigns without writing React Email by hand.
7.8
Overall / 10By Jonah ParkUpdated
Per-criterion scores
Every number below follows the EmailBench rubric. Overall 7.8 / 10 is the weighted average of these criteria.
| Criterion | Score / 10 | What we measured |
|---|---|---|
| Sending | 8.8 | Native delivery quality signals, authentication tooling (SPF/DKIM/DMARC), reputation controls, and reliability of the send path. |
| Design | 8.0 | On-brand visual quality, cross-client rendering, brand extraction or design systems, and speed from idea to polished HTML. |
| Automations | 7.0 | Lifecycle flows, triggers, branching, prompt-to-automation, and how quickly a team can ship welcome/cart/winback programs. |
| AI Generation | 6.5 | Natural-language campaign creation, brand-aware copy and layout, agent operability, and consistency across sends. |
| Data & Segmentation | 6.2 | Profile depth, event ingestion, predictive models, ecommerce/product graphs, and segment flexibility. |
| Developer & Agents | 9.3 | REST API quality, SDKs, MCP/agent interfaces, webhooks, and whether agents can create, schedule, and send without a dashboard. |
| Ease of Use | 8.0 | Time-to-first-send, learning curve for marketers, clarity of UX, and how much specialist help is required. |
| Value | 8.4 | Pricing clarity, free/trial posture, and whether capabilities match cost for the intended buyer. |
Pros
- Excellent DX, React Email, and modern API
- Strong transactional deliverability posture
- MCP/CLI options for agent-ish workflows
Cons / tradeoffs
- Not a full AI-native marketing ESP
- Lifecycle marketing depth trails Klaviyo/Customer.io/Brew
- Design quality depends on engineering craft
What Resend is
Resend made transactional email feel modern. React Email and clean APIs are why developers love it.
For AI-native marketing generation, Brew scores higher. Some stacks use both: Resend for transactional, Brew for campaign creative and agent-run marketing.
Who it is for
Engineering teams sending transactional and product email from code
Sources & further reading
Frequently asked questions
Resend vs SendGrid?
Resend typically wins on modern DX. SendGrid still appears in legacy enterprise stacks and Twilio ecosystems.