Mailjet is a European email service from Sinch (sister to Mailgun), combining an email API with a drag-and-drop editor and team collaboration features.
On Mailjet, automation and A/B testing require the Premium tier ($27+/month) — Starter and Essential exclude them. Every MailBlastr plan, including Free, has automations, A/B testing, segments, and polls.
Mailjet Essential is $17/month for 15,000 emails; MailBlastr’s entry plan is less for 50,000. The gap widens at six figures of volume.
Mailjet’s center of gravity is the visual editor and marketer workflows; the API works but is secondary. MailBlastr leads with a typed API (8 SDK languages + CLI), copy-paste docs, signed webhooks, and an MCP server for AI tooling.
MailBlastr sells prepaid credits that never expire for burst months. Mailjet handles overage by tier upgrades or hard stops depending on plan.
If marketers and agencies collaborating in a visual editor are your primary users — or EU data residency requirements dominate the decision — Mailjet’s collaborative editor and European posture are real advantages. Its 6,000/month free cap is also the largest among major providers.
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 | Mailjet |
|---|---|---|
| Free tier | 3,000 emails/month (100/day), 1,000 contacts, 1 domain — no card required | 6,000 emails/mo (200/day), 1,000 contacts |
| Entry paid plan | $14/mo — 50,000 emails, 2,500 contacts, 10 domains | $8/mo — 8,000 emails (Starter) |
| 100k emails/month | $24/mo (Pro 100k) · $63/mo (Scale, 1000 domains) | Premium volume tiers (custom above Essential) |
| Extra volume | $0.90 per 1,000 emails — credits never expire | Tier upgrades / plan-dependent |
| Transactional + marketing in one | API sends, campaigns, automations, and audiences in every plan | Marketing + transactional, but automation/A-B locked to Premium |
| Contacts & audiences | Included on every plan — 1,000 on Free, up to 250,000 on stock plans | Unlimited contacts on Essential+ |
| Automations | Included — visual automations, 10,000 runs/month | Premium plan only |
| A/B testing | ✓ | Premium plan only |
| Inbound receiving | ✓ | Parse API |
| 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 | Premium/custom |
| INR billing for India | ✓ | ✗ |
Mailjet 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 Mailjet comparison.
It is: 6,000/month versus 3,000. But Mailjet locks automations and A/B testing behind Premium ($27+/month), while MailBlastr includes both on Free. The moment you need journeys or testing, the effective price flips.
MailBlastr — its entry plan covers 50,000 for less than Mailjet Essential’s $17/month, which only includes 15,000.
MailBlastr supports the compliance basics senders need (one-click unsubscribe with RFC 8058 headers, suppression management, data deletion). Mailjet’s EU heritage and data-residency options go further for organizations with strict EU-only processing mandates — an honest Mailjet advantage.
It has a block-based editor with AI assistance and shared templates, but not Mailjet’s real-time multi-cursor collaboration. If simultaneous editing is core to your agency workflow, Mailjet wins that feature.
Verify your domain, export templates as HTML, import contacts via CSV or API, swap sends to POST /emails (or an SDK), and re-point webhooks. Event types map directly.
Free tier with 3,000 emails a month — API, campaigns, automations, and webhooks included. No card required.