Postmark gives 100 emails/mo (no expiration), which is why teams compare it in 2026. The strongest Postmark alternatives are Resend, Mailgun, and Brevo: Resend offers the best Next.js developer experience with a 3,000/mo free tier, Brevo has the largest free tier, and Amazon SES is cheapest at $0.10 per 1,000.
- Postmark free tier: 100 emails/mo (no expiration).
- Largest free tier here: Brevo (300 emails/day (no time limit, ~9,000/mo, shared with campaigns))
- Best Next.js developer experience: Resend (3,000/mo free).
- Cheapest at scale: Amazon SES ($0.10 per 1,000).
Top Postmark alternatives
| Provider | Free tier | Entry paid | Dedicated IP | Best for |
|---|---|---|---|---|
| Resend | 3,000 emails/mo (100/day). | $20/mo | $30/mo (Scale) | Best-in-class developer experience (React Email, type-safe) |
| Mailgun | 100 emails/day (~3,000/mo), 1-day log retention, 1 custom domain. | $15/mo | 1 included on Foundation 100k / Scale; extra IPs $59/IP/mo | Flexible routing and inbound processing |
| Brevo | 300 emails/day (no time limit, ~9,000/mo, shared with campaigns). | $9/mo | Higher / enterprise tiers | Generous no-expiry free tier (300/day) |
| Mailtrap | 4,000 emails/mo (150/day). | $15/mo | Higher tiers | Separate sending streams, modern integrations (Vercel/Supabase/MCP) |
| Amazon SES | 3,000 message charges/mo for the first 12 months only (not permanent). | usage-based | $24.95/mo (Standard) | Cheapest at scale ($0.10/1,000) |
| SendGrid (Twilio) | Permanent free tier discontinued on 2025-05-27. New accounts get a 60-day trial (100 emails/day) only. | $19.95/mo | Included on Pro and above | Mature feature breadth and scale |
Postmark: current pricing
| Plan | Price / mo | Included | Overage |
|---|---|---|---|
| Free | $0 | 100 / mo (no expiry) | — |
| Basic | $15 | 10,000 / mo | $1.80 / 1k |
| Pro | $16.5 | 10,000 / mo | $1.30 / 1k |
Postmark is a solid transactional email provider, but teams put it up for comparison for concrete reasons: small free tier (100/mo) and not for marketing/bulk campaigns. Its strengths are industry-leading deliverability and speed and separate transactional / bulk message streams, so whether an alternative is worth the switch depends on which trade-off actually affects your project.
Postmark is free up to 100 emails/mo (no expiration), then paid plans run $15/mo for 10,000 and $16.5/mo for 10,000, with overage from $1.80 / 1k; dedicated IP: From $50/mo (requires 300,000+/mo). Best when deliverability matters most. In Next.js, use the postmark SDK from a Route Handler.
Among the alternatives, Resend (3,000 emails/mo (100/day) free, from $20/mo) for best-in-class developer experience (React Email, type-safe), Mailgun (100 emails/day (~3,000/mo) free, from $15/mo) for flexible routing and inbound processing, and Brevo (300 emails/day (no time limit, ~9,000/mo, shared with campaigns) free, from $9/mo) for generous no-expiry free tier (300/day). On Next.js specifically, Resend is the smoothest migration thanks to its type-safe SDK and React Email templates.
Pick by priority: Brevo if a generous always-free tier matters most, Postmark if inbox placement for receipts and password resets is critical, and Amazon SES for the lowest per-email cost at scale. All figures were verified against each vendor's pricing page on 2026-06-04.
// app/api/send/route.ts
import { Resend } from "resend";
const resend = new Resend(process.env.RESEND_API_KEY!);
export async function POST(req: Request) {
const { to, subject, html } = await req.json();
// was: client.sendEmail({ From, To, Subject, HtmlBody })
const { data, error } = await resend.emails.send({
from: "noreply@yourdomain.com", to, subject, html,
});
return error
? Response.json({ error }, { status: 500 })
: Response.json({ id: data?.id });
}FAQ
- What is the best Postmark alternative for a Next.js app?
- Resend, thanks to its type-safe SDK, React Email templates and a 3,000/mo free tier, which make it the quickest drop-in for Next.js and JavaScript projects.
- Which Postmark alternative has the largest free tier?
- Brevo: 300 emails/day (no time limit, ~9,000/mo, shared with campaigns).
- Which Postmark alternative is cheapest at scale?
- Amazon SES at $0.10 per 1,000 emails, if you can handle the additional AWS configuration and deliverability monitoring.