Why developers look for Resend alternatives
Resend has built a great developer experience for transactional email. But teams hit limits when they need:
- Full campaign features — Resend's Audiences/Broadcasts are basic compared to a dedicated campaign builder with segmentation and scheduling
- Mature SMTP relay — Resend added SMTP recently, but teams with legacy integrations may want a more established implementation
- Higher volume at lower cost — Resend's Scale plan is $90/mo for 100K emails; RelayPost Pro is $25/mo for 100K
- Contact management — Resend's Audiences feature is limited compared to full contact management with segmentation
RelayPost vs Resend: Feature comparison
| Feature | RelayPost | Resend |
|---|---|---|
| REST API | Yes | Yes |
| SMTP relay | Yes | Yes |
| Transactional email | Yes | Yes |
| Campaign / marketing email | Yes (full) | Yes (Broadcasts) |
| Contact management | Yes (full) | Limited (Audiences) |
| DKIM/SPF authentication | Automatic | Automatic |
| Real-time webhooks | Yes | Yes |
| Email templates | Yes | Yes (React Email) |
| Suppression management | Automatic | Manual |
| Free tier | 1,000/mo | 3,000/mo (100/day cap) |
| Deliverability dashboard | Public, real-time | Basic logs |
Pricing comparison
| Volume | RelayPost | Resend |
|---|---|---|
| 1,000/mo | Free | Free |
| 10,000/mo | $5/mo | $20/mo |
| 50,000/mo | $25/mo (Pro) | $20/mo (Pro) |
| 100,000/mo | $25/mo (Pro) | $90/mo (Scale) |
Resend's free tier has a 100 emails/day cap. RelayPost's free tier has no daily limit. Resend Pro includes 50K emails; Scale includes 100K at $90/mo.
When Resend might be the better choice
Resend is a good fit if you:
- Only need transactional email and prefer a minimal, focused tool
- Use React Email for template design and want tight integration
- Want a higher free tier for low-volume projects (3,000/mo vs 1,000/mo)
- Don't need advanced campaign features beyond basic broadcasts
Frequently asked questions
How is RelayPost different from Resend?
RelayPost includes full campaign email with contact management, list segmentation, and a campaign builder. Resend recently added Audiences for broadcasts and SMTP relay, but RelayPost's campaign features are more mature. RelayPost also offers better pricing at scale ($25/100K vs ~$70/100K).
Does RelayPost have an SMTP relay like Resend?
Yes. Both RelayPost and Resend now support SMTP relay. RelayPost supports ports 587 and 465 with STARTTLS/TLS. Resend added SMTP support more recently, so RelayPost's implementation is more battle-tested for legacy integrations.
How does pricing compare to Resend?
Resend's free tier is 3,000 emails/mo (100/day limit). Their Pro plan is $20/mo for 50K emails, Scale is $90/mo for 100K. RelayPost's free tier is 1,000 emails/mo with no daily cap. The Pro plan is $25/mo for 100K emails — significantly more volume per dollar.
Is RelayPost as developer-friendly as Resend?
Yes. RelayPost provides a clean REST API, real-time webhooks, automatic DKIM/SPF, and a modern dashboard. The API uses standard HTTP — no SDK required. Send emails with fetch() in any language.
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