Resources // Developer Infrastructure
Resend
Offer 3,000 free emails/month
Suits for Non-VC-backedVC-backedCreatorsOpen-source
Updated Jun 2026
The offer
- Free tier: 3,000 emails/month (hard cap of 100 emails/day), no credit card
- Includes 1 custom domain, 1 webhook, the full REST API, SMTP relay, official SDKs, and React Email
- Plus 10,000 automation runs/month and 30-day data retention
- Paid upgrade path: Pro $20/mo (50,000 emails, no daily limit, 10 domains); Scale $90/mo (100,000 emails)
- Overage on paid plans: $0.90 per extra 1,000 emails
Who qualifies
- Open to anyone: no credit card, no application
- You must verify a sending domain (DKIM / SPF / DMARC) to send from your own address
- Free tier is limited to 1 domain and the 100/day ceiling; there is no dedicated startup-credit program
Community Insights
Resend is the default recommendation when developers discuss transactional email, repeatedly named over SendGrid, Mailgun, and Postmark for developer experience and React Email. The recurring caveat is pricing at scale: the $20/mo floor feels steep “to send a few thousand emails,” and paying extra per additional domain pushes some toward Amazon SES or Cloudflare’s email service. It’s deeply embedded in the modern indie / startup stack (Next.js, Supabase, Vercel, and Resend shows up constantly).
Best Practices (from community tips)
- Verify your domain (DKIM / SPF / DMARC) before sending. Unverified domains silently fail.
- Stay under 100 emails/day to remain on free; batch or schedule non-urgent sends.
- Use React Email for templates. It’s the differentiator most developers cite.
- If you need multiple sending domains cheaply, price-check Pro vs Cloudflare Email or SES before committing.
- Add a rate-limit / abuse guard on magic-link and signup flows so bad actors can’t burn your quota.
- Set up webhooks to track delivery / open / click events.