SendiventvsPostmark

Email excellence vs multi-channel breadth

Postmark is legendary for transactional email. They've optimized everything for deliverability and built a reputation for reliability.

Sendivent takes a different approach: handle the most important notification channels together, rather than optimizing a single channel in isolation.

When email-only is right

If email is truly your only channel and deliverability is critical, Postmark is hard to beat — they're one of the best options on the market. Their focus shows in:

• Industry-leading delivery times
• Excellent sender reputation management
• Detailed delivery analytics

When multi-channel matters

Most products eventually need more than email. When that happens, you either:

1. Add more providers alongside Postmark
2. Use a multi-channel platform like Sendivent

Option 2 is simpler but trades Postmark's email excellence for channel breadth. Sendivent's email deliverability is built on AWS SES, the same infrastructure trusted by thousands of companies.

The honest comparison

Postmark is better at email. Sendivent is better at doing email plus everything else from one place. The question is which tradeoff fits your product.

Code Comparison

With Postmark (email only)

import { ServerClient } from 'postmark';
const client = new ServerClient('your-api-key');

// Email works great
await client.sendEmail({
  From: 'noreply@example.com',
  To: user.email,
  Subject: 'Order Confirmed',
  HtmlBody: renderedTemplate
});

// Now you need SMS? Add Twilio
import twilio from 'twilio';
await twilioClient.messages.create({ body: '...', to: user.phone });

// Need Slack? Add another integration
await fetch(slackWebhook, { method: 'POST', body: '...' });

// Three providers, three APIs, three billing relationships

With Sendivent

await sendivent
  .event('order.confirmed')
  .to({ email: user.email, phone: user.phone, slack_id: '#orders' })
  .payload({ orderId, total })
  .send();

// One API, one dashboard, one bill
// Which channels fire is configured per event

Need more than email? Start with a free account and add SMS and Slack alongside your transactional email. One dashboard, one API, predictable pricing.