Email infrastructure
for builders.
The simplest way to send transactional emails. Built on top of a fully self-hosted Postal stack with your own DKIM, SPF, and DMARC. No relays, no compromises.
# Install
npm install sendersy
# Send an email
import { Sendersy } from 'sendersy'
const sendersy = new Sendersy('sk_live_•••')
await sendersy.emails.send({
from: 'Acme <hi@yourcompany.com>',
to: 'user@example.com',
subject: 'Welcome to Acme',
html: '<p>Hi there 👋</p>',
})Everything you need to ship
One API. Full control. Real-time delivery.
REST API
Single endpoint. Bearer auth. Plain JSON. Drop-in compatible with the Resend SDK.
Built for the inbox
Self-hosted Postal with DKIM, SPF, DMARC, MTA-STS, and TLS-RPT preconfigured. Your IP, your reputation.
Real-time logs
See every send, bounce, open and click as it happens. Full payload preserved for debugging.
Multi-domain
Send from any domain you own. Add a domain, verify DNS, you're done.
Webhooks
Subscribe to delivery events. Built-in retries, signed payloads, replay-safe.
Built for Russia too
Full RU localization, Юкасса payments, FZ-152 compliance, support in Russian.
Pricing that scales with you
Start free, pay only when you grow.
Free
For testing and personal projects
- 100 emails/month
- 1 verified domain
- Basic logs (7 days)
- Community support
Pro
For businesses ready to scale
- 50 000 emails/month
- Unlimited domains
- 30-day logs
- Webhooks + replay
- Email support