Reliable cloud email infrastructure designed for SaaS scale without DevOps complexity
Deliver critical software notifications without maintaining mail servers or navigating complex AWS IAM configurations. A sovereign MTA we operate ourselves, automated deliverability shielding, and SPF, DKIM and DMARC aligned on every send.
Drop into your application in under 60 seconds
Native typed interfaces with zero unnecessary dependencies. Built for standard fetch and modern edge runtimes.
import { SadaSend } from 'sadasend';
const sadasend = new SadaSend(process.env.SADASEND_API_KEY!);
// Dispatches with automatic TLS 1.3 encryption and DKIM signing
export async function sendInfrastructureNotice(payload: {
to: string;
serverName: string;
incidentUrl: string;
}) {
return await sadasend.emails.send({
from: 'Ops Alerts <alerts@yourdomain.com>',
to: payload.to,
subject: `[URGENT] Incident Reported on ${payload.serverName}`,
html: `<p>High memory utilization detected. <a href="${payload.incidentUrl}">View incident</a></p>`,
tags: ['monitoring', 'pager-duty']
});
}Zero-latency infrastructure alert dispatch with automatic SPF, DKIM, and TLS 1.3 in-transit encryption.
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.
Multi-Region Global Edge Network
Distributed points of presence across North America, Europe, Australia, and Asia guarantee fast ingestion.
Automated IP Reputation Shielding
Pre-warmed deliverability pools protect your sender reputation from neighbor noise without requiring dedicated IP fees.
Zero DevOps Server Maintenance
Eliminate Postfix, OpenDKIM, and SSL certificate maintenance on VPS instances with fully managed cloud infrastructure.
Bi-Directional Webhooks & Dead-Letter Queues
Receive real-time delivery telemetry with automatic webhook retry algorithms and dead-letter queue inspection.
Enterprise AI Agent Safety Rails
Enforce strict velocity limits, human review holds, and recipient domain allowlists across autonomous agent workflows.
6,000 Free Monthly Sends
Full access to cloud infrastructure, custom domain signing, and monitoring tools with 6,000 free sends every month.
SadaSend vs Self-Hosted Postfix / AWS SES DIY
Why growing SaaS companies choose managed SadaSend infrastructure over DIY mail servers and complex AWS setups.
| Feature & Capability | SadaSend | Self-Hosted Postfix / AWS SES DIY |
|---|---|---|
| Zero DevOps Server Maintenance | Requires ongoing Postfix / Linux patching | |
| Dedicated IP Surcharges | $0 (Smart pool included) | $89.95/mo or difficult AWS IP warm-up |
| Instant Production Sending | Ready in 2 minutes | Days waiting for AWS SES sandbox approval |
| AI Agent Guardrails & MCP Tools | ||
| Built-In Webhook Retry Queues | Requires configuring AWS SNS / SQS manually | |
| Permanent Free Tier | 6,000 sends forever | Pay per request + data transfer fees |
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.
Everything you need to know about email infrastructure
Clear, transparent answers on deliverability, API authentication, and rate limits.
Related developer guides and architectural tutorials
Explore step-by-step production implementation blueprints, benchmarks, and protocols.
REST API Reference & Endpoints
Complete REST API reference for sending emails, managing API keys, tracking delivery events, and configuring recipient allowlists with low latency.
SMTP relay & framework integrations
Connect existing applications, WordPress, Supabase, Laravel, Django, and Nodemailer to SadaSend via standard SMTP relay with zero code changes.
Migrating from AWS SES to SadaSend: Bypassing Sandbox Limits & IAM Complexity
AWS SES is cheap until you spend 3 days navigating AWS IAM policies, submitting support tickets to leave the sandbox, and wrestling with CloudWatch deliverability dashboards.
Dedicated IP vs Shared IP for Email: When Do You Actually Need One?
Think a dedicated IP will magically fix your deliverability? If you send under 100,000 emails a month, a dedicated IP will actually hurt your inbox placement. Here is the math.
How to Warm Up Dedicated IP Pools for High-Volume Transactional Sending
Moving to a dedicated IP address requires systematic warm-up. Follow this 30-day mathematical schedule to build stellar IP reputation with Gmail, Yahoo, and Outlook.
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.