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Static Sites & JAMstack ReadyZero Server Setup · Spam Protected

Send contact form submissions directly to your inbox without running a backend server

The cleanest contact form solution for Astro, Vite, Next.js, and static websites. Submit inquiries to our lightweight API and receive notifications immediately with anti-bot protection.

3,000 emails/month freeZero credit card requiredSub-20ms edge latency
202 Accepted
Submission Latency
Queued durably before any provider call
3 minutes
Setup Time
Single API POST call
6,000/mo
Free Tier
Permanent allowance
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
api/contact.ts
typescript
TYPESCRIPT
import { SadaSend } from 'sadasend';

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

export async function handleContactForm(formData: {
  name: string;
  email: string;
  message: string;
}) {
  return await sadasend.emails.send({
    from: 'Contact Bot <noreply@yourdomain.com>',
    to: 'team@yourdomain.com',
    replyTo: formData.email,
    subject: `New Contact Form Inquiry from ${formData.name}`,
    html: `
      <h3>New message from ${formData.name} (${formData.email}):</h3>
      <p style="white-space: pre-wrap; background: #f4f4f5; padding: 16px; border-radius: 6px;">
        ${formData.message}
      </p>
    `,
  });
}

Serverless route handler capturing website form inquiries and delivering them immediately to your support inbox with reply-to headers.

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.

Zero Mail Server Maintenance

Eliminate the headache of configuring local Postfix or Sendmail servers on VPS instances just to forward contact form inquiries.

Reply-To Header Support

Set the submitter email as replyTo so clicking Reply in Gmail or Outlook immediately starts a direct conversation with the lead.

Static Site Generator Friendly

Works seamlessly in serverless functions on Astro, Netlify, Cloudflare Pages, Vercel, and Gatsby with simple fetch calls.

Spam & Abuse Defense

Pair with honeypot fields or Turnstile challenges; SadaSend rate limits and recipient rules prevent form flooding attacks.

Instant Team Notifications

Forward form submissions simultaneously to multiple team emails or an automated ticketing webhook endpoint.

6,000 Free Monthly Submissions

More than enough capacity for personal blogs, agency client sites, and startup marketing pages at zero cost.

Architectural Comparison

SadaSend vs Third-Party Form Services (Formspree / Formkeep)

Why developers prefer SadaSend over expensive third-party form widgets with restrictive submission quotas.

Feature & CapabilitySadaSendThird-Party Form Services (Formspree / Formkeep)
Custom Sender Domain BrandedSent via submissions@formspree.io
Free Tier Monthly Limit6,000 submissions/mo50 submissions/mo strict limit
Native API / Full Code ControlLocked into their hosted redirect pages
Reply-To Header Support
AI Agent & MCP Tool Access
Zero External Branding / WatermarksRequires paid tier to remove branding
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 contact form email API

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

Set the replyTo field in your sadasend.emails.send() call to the submitter email address. When you receive the form notification in your inbox, pressing Reply responds directly to the visitor.
Technical Deep Dives

Related developer guides and architectural tutorials

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