Danny Douglass
November 10, 2020

Today we’re excited to announce the Courier and Segment integration is publicly available. Product teams can now send targeted notifications to users on any channel – *without *shipping any code.
With the Courier destination in Segment, you can automatically create user profiles in Courier and trigger notifications based on events you track in Segment. For example, you might notify users when they buy a product, use a feature, or take an action like resetting their password.
Our new integration gives you access to your most important customer data, so you can deliver the right notification to the right user at exactly the right moment. Best of all, the integration takes just minutes to set up and is entirely no-code.
Segment is a single platform that makes it easy to collect, unify, and connect your customer data. With Segment, you can build a unified view of your customer – who they are, what actions they take, and where they take them in your product. You can then fan out that 360-degree view across hundreds of tools, including Courier, with just a few clicks.
If you’re new to Segment, you can learn more about the platform here.
Using Courier and Segment together makes it easy to send notifications that are highly targeted and personalized to your users. Combined with 20+ channel integrations in Courier, you can reach users across email, SMS, push, and messaging apps like Slack and Microsoft Teams.
Here’s how the Courier destination for Segment works:
Automatically populate user profiles in Courier with customer data from Segment. Along with basic properties like email address and phone number, which are necessary to send notifications, you can also enrich user profiles in Courier with any custom traits you record in Segment.
With user profile data, you can deliver notifications that are truly personalized to every user. Say, for example, that you’re a global business. If you record your users’ preferred language, you can use conditional logic to deliver the notification in that language. You can also include traits like first name and location as variables in the message itself.

Send timely, contextual messages to your users based on what they do as soon as they do it. Once the Courier destination is installed, user events that you track in Segment will automatically start flowing into Courier. All you need to do is map the right user events to the right notifications in Courier, and your notifications will start triggering immediately.
If you’re a SaaS company, you might choose to notify users for events like creating an account, hitting a usage limit, or having their payment method declined. For ecommerce businesses, you might focus on user events like clicking an ad, viewing a product, or abandoning their cart.

Our beta customers are already seeing the value of the Courier and Segment integration. Staffing platform Bluecrew takes a Segment-first approach to collecting their customer data. Thanks to our new integration, it took just 30 minutes for them to set up their first notification in Courier.
Today Bluecrew sends hundreds of thousands of notifications every month through Courier, across email, text, in-app and Slack. Here’s what their CPO Coop had to say:
“We were looking at building our notifications infrastructure ourselves. Nothing had all the connections we needed. We wanted something that could hook into Segment, send multi-channel notifications, and keep all our templates in one place. Now with Courier, anyone can pick an event in Segment, map it to a notification, and start sending a new message on any of our channels – without a single line of code.”
With the Segment and Courier integration, you can combine two powerful platforms to send targeted notifications to your users over any channel – *without *any code at all.
The integration is available on our Starter, Business, and Enterprise plans. To get started, install the Courier destination for Segment. You can also learn more about how our integration works.
Interested in upgrading your plan? Chat with us below or get in touch at sales@courier.com.

How Top Notification Platforms Handle Quiet Hours & Delivery Windows in 2026
No platform offers per-template delivery windows in 2026—it's either per-workflow (Customer.io, Knock), per-campaign (Braze), or global settings. This comparison shows exactly how six platforms handle quiet hours and send time controls based on their documentation and API specs. Braze leads on AI timing (23% open rate lift from Intelligent Timing across their customer base). Novu is the only platform letting subscribers set their own delivery windows. Customer.io and Knock require manual workflow configuration. OneSignal's strength is push-specific optimization across 300K+ apps. Courier combines per-node flexibility with API control. Includes feature matrix, timezone handling, and frequency capping differences.
By Kyle Seyler
January 16, 2026

Notification Observability: How to Monitor Delivery, Engagement, and Provider Health
Notification observability is the practice of monitoring notification delivery, engagement, and provider health using the same tools and discipline you apply to the rest of your application infrastructure. It means tracking whether messages are delivered, opened, and acted on across email, SMS, push, and in-app channels, then surfacing that data in dashboards alongside your other application metrics. Key metrics include delivery rate by channel, bounce and failure rates, provider latency, open rate trends, and click-through rates by template. Teams can build notification observability through DIY webhook handlers that pipe provider events to Datadog or Prometheus, log aggregation from application send logs, or notification platforms with built-in observability integrations. This matters most for multi-channel systems, business-critical notifications like password resets and payment confirmations, and teams using multiple providers with fallback routing.
By Kyle Seyler
January 15, 2026

SMS Opt-Out Rules in 2026
TCPA consent rules changed in April 2025. Consumers can now revoke consent using any reasonable method, including keywords like "stop," "quit," "end," "revoke," "opt out," "cancel," or "unsubscribe." Businesses must honor opt-out requests within 10 business days, down from 30. The controversial "revoke all" provision, which would require opt-outs to apply across all automated messaging channels, has been delayed until January 2027 and may be eliminated entirely. SMS providers like Twilio handle delivery infrastructure and STOP keyword responses at the number level. They don't sync opt-outs to your email provider, push notification service, or in-app messaging. That cross-channel gap is your responsibility. Courier provides unified preference management that enforces user choices across SMS, email, push, and chat automatically.
By Kyle Seyler
January 13, 2026
© 2026 Courier. All rights reserved.