Skip to content
E-Commerce & Subscription BillingBranded Payment Confirmation

Dispatch beautiful, branded purchase receipts instantly on Stripe & Paddle webhooks

Deliver customized payment confirmations, order summaries, and subscription renewals with 100% inbox placement and instant delivery speeds.

3,000 emails/month freeZero credit card requiredSub-20ms edge latency
202 Accepted
Dispatch Latency
Queued durably before any provider call
SPF · DKIM · DMARC
Authentication
Aligned on every send
6,000
Monthly Quota Free
No credit card needed
Developer Ergonomics

Drop into your application in under 60 seconds

Native typed interfaces with zero unnecessary dependencies. Built for standard fetch and modern edge runtimes.

$npm install sadasend
send-receipt.ts
typescript
TYPESCRIPT
import { SadaSend } from 'sadasend';

const sadasend = new SadaSend(process.env.SADASEND_API_KEY!);

export async function sendPaymentReceipt(customerEmail: string, order: { id: string; amount: string; plan: string }) {
  return await sadasend.emails.send({
    from: 'receipts@yourdomain.com',
    to: customerEmail,
    subject: `Payment Receipt for ${order.plan} (#${order.id})`,
    html: `
      <div style="font-family: sans-serif; max-width: 500px; margin: auto; padding: 20px; border: 1px solid #e2e8f0; border-radius: 8px;">
        <h2>Payment Received</h2>
        <p>Thank you for subscribing to <strong>${order.plan}</strong>.</p>
        <hr style="border: none; border-top: 1px solid #e2e8f0; margin: 16px 0;" />
        <p><strong>Amount Paid:</strong> ${order.amount}</p>
        <p><strong>Transaction ID:</strong> ${order.id}</p>
      </div>
    `,
    tags: ['billing-receipt', 'subscription-success']
  });
}
Core Infrastructure

Engineered for high deliverability and zero incident risk

Every layer from edge connection pooling to per-key rate limits is designed to keep critical transactional dispatches fast, reliable, and contained.

Instant Delivery Confirmation

Payment receipts trigger in milliseconds following payment gateway webhook completion, providing immediate purchase validation.

Modern Responsive Layouts

Render responsive HTML receipts that look stunning on Apple Mail, Gmail dark mode, Outlook desktop, and mobile web clients.

DKIM & SPF Authentication

Every email is signed with authoritative domain keys, ensuring billing receipts never land in spam or promotional folders.

One-Click Unsubscribe Exemption

Pure transactional receipts do not require marketing unsubscribe links under RFC 8058, ensuring compliant financial communication.

Architectural Comparison

SadaSend vs Default Stripe Receipt Emails

Default Stripe receipts lack custom domain sending and branded layout control. SadaSend allows full brand customization.

Feature & CapabilitySadaSendDefault Stripe Receipt Emails
Custom Sender Domainreceipts@yourdomain.cominvoice+statements@stripe.com
Custom HTML & CSS StylingGeneric pre-set template only
Webhook Delivery Telemetry
Multi-Gateway AggregationStripe only
Forever Free Tier
Transparent Economics

Start with 3,000 emails every month at zero cost

No artificial paywalls on security. Unlike legacy providers that reserve recipient allowlists or dedicated IP pools for high enterprise tiers, every SadaSend account receives full safety controls from day one.

3,000 dispatches monthly forever with zero credit card
All safety gates, allowlists, and velocity limits included
Scale seamlessly: Starter ($12/mo for 10k), Pro ($19/mo for 50k), Scale ($79/mo for 250k)
Free Developer Plan
$0 / mo

No credit card required

Create Free AccountCompare all paid plan tiers
Frequently Asked Questions

Everything you need to know about receipt email API

Clear, transparent answers on deliverability, API authentication, and rate limits.

Yes. Disable default receipts in the Stripe dashboard under Business settings -> Customer emails. Then listen to customer.subscription.created or invoice.payment_succeeded webhooks in your backend and trigger branded SadaSend receipts.
Technical Deep Dives

Related developer guides and architectural tutorials

Explore step-by-step production implementation blueprints, benchmarks, and protocols.

Documentation

REST API Reference & Endpoints

Complete REST API reference for sending emails, managing API keys, tracking delivery events, and configuring recipient allowlists with low latency.

Read guide
Documentation

Official Client SDKs (TypeScript & Python)

Official zero-dependency client SDKs for SadaSend. TypeScript and Python packages are live on npm and PyPI with typed results and auto-idempotency.

Read guide
Documentation

React Email Templates & Integration

How to build, preview, and send transactional emails using React Email and JSX components with zero-bleed preheaders and Outlook MSO support on SadaSend.

Read guide
Deep Dive3 min read

Micro-SaaS Stack: Supabase, Stripe & SadaSend Guide

Building a SaaS in 2026? Here is how to architect authentication with Supabase, payments with Stripe, and transactional delivery with SadaSend with zero rate limits.

Read tutorial
Deep Dive3 min read

Production React Email Deliverability: Zero-Bleed Preheaders, Outlook MSO & Gmail Clipping Defense

Rendering React Email in production? Learn how to avoid Gmail 102 KB clipping, prevent preheader snippet leakage, handle Outlook Word HTML tables, and support Apple Mail dark mode.

Read tutorial
Deep Dive3 min read

Why your transactional email goes to spam

People assume transactional mail is exempt from filtering because it was requested. Mailbox providers do not know that, and mostly do not care.

Read tutorial
Deep Dive4 min read

SPF, DKIM and DMARC: what each one actually does

Three records, endlessly confused with each other. Here is the mental model that makes them stop being confusing, and the two mistakes that cause most failures.

Read tutorial
Deep Dive3 min read

How to Implement RFC 8058 One-Click Unsubscribe Headers in React Email

Google and Yahoo require all bulk and notification senders to support RFC 8058 one-click unsubscribe. Here is how to configure HTTP POST handlers and headers in React Email.

Read tutorial