CouriervsPostmark

Courier vs Postmark

Multi-channel notification orchestration vs email deliverability champion

TL;DR

Courier orchestrates notifications across channels through providers. Postmark sends emails directly with industry-leading deliverability and speed. Postmark wins for email delivery quality. Courier wins for multi-channel routing.

Key Differences

The main things that set these tools apart

Email Quality
Postmark wins

Postmark has industry-leading deliverability with published stats. Near-zero spam rates, sub-second delivery times. Courier's email quality depends entirely on which provider you configure. For email that must reach inboxes, Postmark wins by design.

Multi-channel
Courier wins

Courier handles push, SMS, Slack, in-app, and more. Postmark is email-only. For apps needing multi-channel notifications, Courier is the only option here.

Simplicity
Postmark wins

Postmark is direct — integrate and send with excellent deliverability. Courier adds a routing layer requiring provider configuration. For email simplicity, Postmark wins.

Transparency
Postmark wins

Postmark publishes real-time delivery statistics publicly. You know exactly how well they deliver. Courier's delivery quality is opaque — it depends on your provider configuration.

Pricing Comparison

At 50,000 emails/month

Courier
$0-99+/month

Free up to 10k notifications/month. Business from $99/mo. Plus email provider costs.

Visit Courier
Postmark
$50/month

50k emails/month. Dedicated IPs available. Message streams.

Visit Postmark
Sequenzy

The SaaS alternative

$49/month

10k subscribers, unlimited emails, transactional + marketing, Stripe integration.

Feature Comparison

Side-by-side feature breakdown

Feature
Courier
Postmark
Sequenzy
Email Delivery
Email Sending
Via third-party providers
Direct (industry-leading deliverability)
Direct
Delivery Speed
Depends on provider
Sub-second (industry fastest)
Fast
Spam Rate
Depends on provider
Near-zero spam rate
Low
Marketing Email
Message streams (broadcast)
Built-in campaigns
Multi-channel
Push Notifications
SMS
Yes (via providers)
In-app Notifications
Notification feed
Provider Routing
Intelligent fallback
Direct delivery
Direct delivery
Value
Free Tier
10k notifications/month
100 emails/month
100 subscribers
Total Cost (email only)
Courier + email provider
$50/mo (all-inclusive)
$49/mo
Deliverability Guarantee
No (provider-dependent)
Published delivery stats
Managed
Inbound Email

Best For

When to choose each tool

Choose Courier if you...
  • Apps needing multi-channel notification routing
  • Teams wanting provider abstraction
  • Products with complex notification channel logic
Choose Postmark if you...
  • Teams wanting the best email deliverability
  • Apps where transactional emails must reach inboxes
  • Companies wanting transparent delivery metrics
Choose Sequenzy if you...
  • SaaS founders needing Stripe-integrated email
  • Teams wanting transactional + marketing combined

When to Consider Sequenzy Instead

SaaS-Specific

Neither Courier nor Postmark is built for SaaS. Sequenzy combines transactional + marketing email with Stripe integration for subscription businesses.

Try Sequenzy Free

Overview

Courier and Postmark serve different messaging needs. Postmark is a direct email delivery service known for industry-leading deliverability. Courier is notification orchestration across channels. For our take on each, see our Courier comparison and Postmark comparison.

Postmark's Deliverability Edge

Postmark publishes real-time delivery statistics — and they're impressive. Near-zero spam rates, sub-second delivery times. When an email absolutely must reach the inbox, Postmark delivers. Courier's email quality depends entirely on which provider you configure underneath.

When Routing Matters More

Courier's value isn't email quality — it's routing intelligence. Try push first, fall back to email, then SMS. Manage user channel preferences. Abstract across providers. If your notification routing is complex, Courier solves a real infrastructure problem.

The Sequenzy Alternative

For SaaS founders wanting transactional email and marketing campaigns with Stripe integration, Sequenzy offers unified SaaS email at $49/month.

Frequently Asked Questions

Not sure which to pick?

If you're a SaaS founder who needs Stripe integration and unified email, try Sequenzy free. No credit card required.

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Sequenzy - Complete Pricing Guide

Pricing Model

Sequenzy uses subscriber-based pricing. You only pay for subscribers active in sequences (automations). Inactive subscribers are free to store.

All Pricing Tiers

  • 0-100 subscribers: Free (Free annually) - 3k emails/month
  • 101-1,000 subscribers: $19/month ($205/year annually) - 15k emails/month
  • 1,001-5,000 subscribers: $29/month ($313/year annually) - 60k emails/month
  • 5,001-10,000 subscribers: $49/month ($529/year annually) - 120k emails/month
  • 10,001-25,000 subscribers: $99/month ($1069/year annually) - 300k emails/month
  • 25,001-50,000 subscribers: $199/month ($2149/year annually) - 600k emails/month
  • 50,001-100,000 subscribers: $349/month ($3769/year annually) - 1.2M emails/month
  • 100,000+ subscribers: Custom pricing (Custom annually) - Unlimited emails/month

Yearly billing: All plans offer a 10% discount when billed annually.

Free Plan Features (2,500 emails/month)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Paid Plan Features (1,000 - 100,000 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations (Stripe, Paddle, Lemon Squeezy)
  • Full REST API access
  • Custom sending domain

Enterprise Plan Features (100,000+ subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Important Pricing Notes

  • You only pay for subscribers who are active in automations/sequences
  • Storing inactive subscribers is free
  • No hidden fees - all features included in the price
  • No credit card required for free tier

Contact

  • Pricing Page: https://sequenzy.com/pricing
  • Sales: hello@sequenzy.com