Mailjet vs MailAnvil: Which Transactional Email API Should Indonesian Developers Pick?
Mailjet vs MailAnvil: Which Transactional Email API Should Indonesian Developers Pick?
Mailjet (owned by Sinch) updated its self-service pricing on September 9, 2026. If you're an Indonesian developer picking an API to send OTP codes, booking confirmations, or invoices, those new numbers matter to you. Here's the honest breakdown.
Mailjet's September 2026 price update — verified from their pricing page
| Mailjet plan | Volume | Price | Daily cap |
|---|---|---|---|
| Free | 6,000/mo | $0 | 200/day |
| Starter | 8,000/mo | $9 | none |
| Essential | 15,000/mo | $17-19 | none |
| Premium | 15,000/mo | $27-29 | none |
Two things stand out for transactional use:
- The Free plan's 200/day cap is a dealbreaker for product emails. An e-commerce store in Jakarta sending order confirmations can blow through 200 emails before lunch on a flash-sale day. Mailjet's free tier is tuned for newsletters, not OTP deliveries — and OTP deliveries are bursty by nature.
- You tier up by volume, but marketing tooling dominates the roadmap. Segmentation, A/B testing, landing pages, AI-assisted content — these are campaign features paying for the Premium tiers that transactional senders don't use.
MailAnvil's numbers
| MailAnvil plan | Volume | Price (IDR) | Price (USD) |
|---|---|---|---|
| Free | 3,000/mo | Rp 0 | $0 |
| Pro | 50,000/mo | Rp 249rb/bln | $15 |
| Max | 100,000/mo | Rp 749rb/bln | $50 |
At 15,000 emails/month, MailAnvil Pro costs $15 — including 35,000 more emails of headroom — while Mailjet Essential runs $17-19 for exactly 15,000. At 50,000/month, Mailjet's Essential 50k tier plus overage pricing stacks up fast; MailAnvil stays flat at $15.
USD conversion trap for Indonesian teams: paying Mailjet means paying in USD on a card, then reconciling the FX spread and your finance team asking for a receipt in English. MailAnvil bills in Rupiah. QRIS and GoPay work. No card, no currency conversion line on your expense report.
Feature differences that actually matter for transactional sends
Where Mailjet wins - Drag-and-drop email editor and MJML templates — fine for marketing teams - Larger free volume (6k vs 3k) if your daily send is genuinely low - Mature marketing suite if you're mixing newsletters and transactional in one tool
Where MailAnvil wins - Transactional-only focus. Reputation isolation, bounce handling, and suppression lists are built for product email — a failed OTP goes to a DLQ with retry logic (3 attempts on SES throttling only), not your marketing dashboard - MCP-native. Your AI agent (Cursor, Claude Code, any MCP client) can send email directly from your codebase. Mailjet has no MCP server - Daily quota + warmup schedule out of the box. New domains start at 10/day and ramp automatically — the mistake that gets Indonesian startups blocked by Gmail in week one - Edge delivery on Cloudflare Workers. Send API latency measured in milliseconds from Jakarta PoPs, not a US or EU region
Real cost scenarios for Indonesian businesses
Fintech sending 40,000 OTP/month. Mailjet: Essential-15k ($17-19) + 25k overage at $2.58/1k ≈ $84. MailAnvil Pro: flat Rp 249rb. You save roughly 80%.
On-demand food delivery in Bandung, 25,000 order invoices/month. Same overage math on Mailjet (~$54) vs a flat Rp 249rb on MailAnvil. Predictable bill matters when your finance lead clears invoices in Rupiah.
Travel booking platform, 60,000 e-ticket confirmations/month. MailAnvil Max: flat Rp 749rb ≈ $50 for 100k. Mailjet's 50k Premium tier plus overage runs meaningfully higher, and every tier up bundles marketing features you'll never touch.
Mailjet's 100k+ volumes are quote-only (Custom plan). MailAnvil publishes the price.
The verdict
If you're a marketing team sending newsletters and want MJML templates — Mailjet is fine, and September's price update didn't break it.
If you're a developer building a product in Indonesia — OTP verification for fintech, booking confirmations for travel, invoices for food delivery — you want transactional-first infrastructure, quota warmup, MCP-native tooling, and an invoice in Rupiah. That's a different product.
Try MailAnvil free at mailanvil.com — 3,000 emails/month, Rp 0, domain verification in minutes, and pay with QRIS or GoPay when you scale.