Send reliable transactional emails from Zapier Zaps without mailbox throttling
Bypass Gmail 500-send daily limits, expired OAuth tokens, and SPF alignment issues. Connect any Zapier trigger to SadaSend via Webhooks by Zapier or custom SMTP.
Drop into your application in under 60 seconds
Native typed interfaces with zero unnecessary dependencies. Built for standard fetch and modern edge runtimes.
{
"method": "POST",
"url": "https://api.sadasend.com/emails",
"headers": {
"Authorization": "Bearer YOUR_SADASEND_API_KEY",
"Content-Type": "application/json"
},
"data": {
"from": "notifications@yourstore.com",
"to": "{{steps.trigger.email}}",
"subject": "Order #{{steps.trigger.order_id}} Shipped!",
"html": "<p>Hi {{steps.trigger.first_name}},</p><p>Your package has shipped with tracking number <strong>{{steps.trigger.tracking}}</strong>.</p>",
"tags": ["zapier", "shipping-update"]
}
}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.
Bypass Gmail & Outlook Throttling
Sending business transactional emails from personal Gmail zaps causes spam flags and domain bans. SadaSend provides dedicated transactional pipes.
Connect with Any Zapier Trigger
Trigger transactional emails from Stripe charges, Shopify orders, Google Sheets row updates, Airtable records, or Typeform submissions.
Two Easy Setup Options
Integrate via "Webhooks by Zapier" custom HTTP request or the "Email by Zapier" SMTP action pointing to smtp.sadasend.com:587.
Recipient Safeguards & Test Mode
Test your Zaps with test mode API keys to verify formatting and variable mapping without sending emails to real customers.
SadaSend vs Email by Zapier (Native)
Zapier built-in email tool restricts you to 10 sends per hour from generic zapiermail.com addresses. SadaSend sends from your custom domain with zero hourly limits.
| Feature & Capability | SadaSend | Email by Zapier (Native) |
|---|---|---|
| Custom Sender Domain (DKIM/SPF) | ||
| Hourly Dispatch Cap | Unlimited (Burst safe) | 10 emails per hour limit |
| HTML Formatting & File Attachments | Basic plain text only | |
| Delivery & Bounce Analytics |
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 Zapier email API
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.
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