Indian startups often compare per-message rupee rates first. That misses what you are actually buying: SMTP only, or a full delivery operations layer.
Credit-based transactional APIs
Providers like ZeptoMail sell packs (e.g. ~₹150 per 10,000 emails, multi-month validity). Excellent when volume is sporadic and you only need a thin send pipe with basic analytics.
Global hyperscaler & ESP APIs
Amazon SES and SendGrid offer massive scale and mature APIs. Billing may be USD; support time zones vary. You still own DNS, suppression discipline, and template strategy.
Platform pricing (Mailmatic model)
Monthly plans (Starter ₹1,499 / Growth ₹4,999 / Pro ₹14,999) bundle predictable volume with:
- Multi-domain dashboard and API key management
- 30–180 day searchable logs
- Bounce classification and suppression
- Campaigns, lists, and scheduling on Growth+
- INR billing and a local support path
How to decide
- Lowest rupees per email, irregular volume → credit SMTP vendor.
- Product team running email as a feature → platform with logs and campaigns.
- Global enterprise compliance stack → hyperscaler or tier-1 ESP plus your own tooling.
Mailmatic does not try to win a race to the cheapest credit. It competes on reliability, observability, and running both transactional and campaign mail in one place.