Resend is a developer-focused email API best known for React Email, polished docs, and a strong presence in the JavaScript ecosystem.
MailBlastr deliberately prices at 0.7× Resend across the ladder: the 50,000-email tier and the 100,000-email tier both cost about 30% less for the same REST-API-plus-SDK workflow — API keys, domains with guided DKIM/SPF/DMARC, batch sends, scheduling, and signed webhooks.
Resend added Broadcasts for marketing sends, but audience tooling is still contact-capped by plan and there is no journey builder. Every MailBlastr plan includes campaigns, segments, topics, visual automations (10,000 runs/month), A/B testing, and polls alongside the transactional API.
Going over plan on Resend means per-1,000 overage billing on Scale tiers. MailBlastr sells email credits that sit in your account until used — buy 50,000 once and they cover any spike, this month or next year.
MailBlastr bills in rupees with India-specific pricing, not a USD card charge plus FX fees. For teams in India that alone often covers the plan cost.
If your team is deeply invested in React Email templates, needs multi-region sending today, or leans on the large ecosystem of Resend examples and integrations, Resend remains an excellent choice — it defined the modern email-API experience.
The free tier (3,000 emails/month) needs no card — you can run the whole migration before paying anything.
Add your sending domain and follow the guided DKIM, SPF, and DMARC setup. One-click flows exist for Cloudflare, GoDaddy, and Namecheap; verification usually completes in minutes.
Replace your current send with one HTTPS request or a typed SDK in 8 languages. Batch endpoints, idempotency keys, and scheduling are built in.
Subscribe a webhook to delivered, opened, clicked, bounced, complained, and unsubscribed events — every request is signed so you can verify the source.
Bring audiences over via CSV or the contacts API; templates port as plain HTML or rebuild in the block editor.
The send call, after the switch
curl -X POST https://www.mailblastr.com/api/emails \
-H "Authorization: Bearer mb_xxxxxxxx" \
-H "Content-Type: application/json" \
-d '{
"domain": "acme.com",
"from": "Acme <hello@acme.com>",
"to": ["ada@example.com"],
"subject": "Welcome to Acme",
"html": "<p>You are in.</p>"
}'| Feature | MailBlastr | Resend |
|---|---|---|
| Free tier | 3,000 emails/month (100/day), 1,000 contacts, 1 domain — no card required | 3,000 emails/mo (100/day), 1 domain |
| Entry paid plan | $14/mo — 50,000 emails, 2,500 contacts, 10 domains | $20/mo — 50,000 emails |
| 100k emails/month | $24/mo (Pro 100k) · $63/mo (Scale, 1000 domains) | $35/mo (Pro) · Scale from $90/mo |
| Extra volume | $0.90 per 1,000 emails — credits never expire | Per-1,000 overage billing on Scale plans |
| Transactional + marketing in one | API sends, campaigns, automations, and audiences in every plan | Broadcasts for marketing; no journey automations |
| Contacts & audiences | Included on every plan — 1,000 on Free, up to 250,000 on stock plans | Audience limits vary by plan |
| Automations | Included — visual automations, 10,000 runs/month | ✗ |
| A/B testing | ✓ | ✗ |
| Inbound receiving | ✓ | ✓ |
| Event webhooks | Signed webhooks: delivered, opened, clicked, bounced, complained, unsubscribed | ✓ |
| Official SDKs | 8 languages + CLI | SDKs for major languages |
| Log retention | 30 days on every plan | Varies by plan |
| Dedicated IP | Add-on on Scale — $21/30 days | Enterprise |
| INR billing for India | ✓ | ✗ |
Resend pricing and features summarized from public pricing pages, last checked 2026-08-02. MailBlastr figures come from the live plan catalog.
Want the row-by-row breakdown? See the full MailBlastr vs Resend comparison.
Yes, by design: MailBlastr prices at roughly 0.7× Resend. The 50,000-email tier costs about 30% less than Resend Pro at the same volume, and the gap holds at 100,000 emails and above. Both have a 3,000-email free tier.
You can render React Email (or MJML, or any templating pipeline) to HTML and send the result through the MailBlastr API — the API accepts full HTML bodies. What MailBlastr does not do is maintain the React Email library itself; that is a genuine Resend strength.
Yes — campaigns, audiences, segments, topics, A/B tests, polls, and visual automations are included in every MailBlastr plan, including Free. On Resend, marketing sends go through Broadcasts with contact limits by plan and no automation journeys.
The concepts map one-to-one: API keys, verified domains, a POST /emails endpoint, batch sending, and signed webhooks. Most teams swap the SDK call and re-point webhook URLs in under an hour; DNS verification of your domain is the only waiting step.
Yes — 3,000 emails/month capped at 100/day on one domain. MailBlastr’s free tier matches the 3,000/100-per-day volume and includes 1,000 contacts plus campaigns and automations, so you can trial marketing sends too.
Free tier with 3,000 emails a month — API, campaigns, automations, and webhooks included. No card required.