Deliverability from sa-east-1
Traffic leaves São Paulo over AWS SES — lower latency for Brazilian inboxes and a region you can explain to compliance.
AWS SES · sa-east-1
Envimaily
Email API for builders
Ship transactional email from São Paulo.
A Resend-compatible HTTP API with em_ keys, day/month quotas, and the same Envimaily account that also runs campaigns — latency-friendly for Brazil, priced in BRL.
Looking for email marketing?curl -X POST https://api.envimaily.com/v1/emails \
-H "Authorization: Bearer em_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"from": "onboarding@envimaily.com",
"to": ["you@example.com"],
"subject": "Hello from São Paulo",
"html": "<p>Transactional mail, live.</p>"
}'First email in one request
Create a free developer account, mint an em_ key, then POST. Pick the tab that matches how you work.
const res = await fetch('https://api.envimaily.com/v1/emails', {
method: 'POST',
headers: {
Authorization: 'Bearer em_YOUR_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
from: 'onboarding@envimaily.com',
to: ['you@example.com'],
subject: 'Hello from São Paulo',
html: '<p>Transactional mail, live.</p>',
}),
});
console.log(await res.json());Works with the stack you already have
HTTP-first. Drop into Node, Python, serverless, or an agent loop — no proprietary SMTP password required.
Node.jsPythoncURLNext.jsFastAPIWorkersAI agents
Built for delivery ops, not just “200 OK”
The pieces you need after hello-world: reputation, events, domains, and readable logs.
Signed webhooks
HMAC-signed events for delivery, bounce, and complaint so your app can react without polling.
Domain authentication
SPF/DKIM verification in the dashboard. Until then, use the shared test sender to the account owner.
Email logs
Status and errors with plan-based retention — enough to debug a failed reset without a SIEM.
Why teams pick Envimaily over a pure ESP API
Brazil-first region
Send from São Paulo (sa-east-1) instead of bouncing every message through us-east.
BRL-native pricing
Free tier to start; Dev Pro from R$ 49/mo — invoices that match how Brazilian startups budget.
Marketing + transactional
One brand, two funnels: campaigns for growth, API for product email — no second vendor to wire.
Resend-compatible shape
POST /emails and /v1/emails with Bearer em_ keys. Familiar payloads if you already know Resend.
Simple developer plans
Hard caps on Free. Room to grow on Dev Pro. Marketing credits stay on the marketing funnel.
Dev Free
R$ 0/month
Ship resets, receipts, and product mail while you validate deliverability.
- 1,000 emails / month
- 100 emails / day
- 1 domain · 1 webhook
- 3-day logs · sending_only keys
Dev Pro
R$ 49/month
Higher limits for production apps. Overage via shared pay-per-use credits.
- 50,000 emails / month
- 5,000 emails / day
- 10 domains · 10 webhooks
- 30-day logs · full API keys
FAQ
Is the API compatible with Resend?
The send surface is intentionally familiar: Bearer em_ keys, JSON body with from/to/subject/html, and both /emails and /v1/emails. It is not a full clone of every Resend product surface.
Can I use the same account for campaigns?
Developer signup and marketing signup are separate funnels so audiences stay clear. The platform can host both products under one brand; pick the entry point that matches how you send.
Where does mail leave from?
AWS SES in São Paulo (sa-east-1), with a dedicated free/dev configuration set for developer traffic.
What happens if I hit the free cap?
Sends return HTTP 429 with daily_limit or monthly_limit. Upgrade to Dev Pro or wait for the window to reset.
Open a free API account
1,000 emails/month · 100/day · no credit card for Free.