Emily Lane
August 07, 2024
Implemented a feature to handle ThrottleException errors more effectively using SES's sendRawEmail function. Previously, a 400 status with ThrottleException would not trigger retries, potentially disrupting email delivery processes. With the new update, such errors now throw a retryable provider error to ensure more robust and resilient email sending. Comprehensive testing and documentation were included to ensure this feature works seamlessly across all supported screen sizes and under various load conditions.
Learn more: Learn how Courier handles delivery retries · See the full list of response and error codes

Experiments: A/B Testing in Journeys
Run 2 to 10 message variants on a single send node in a journey, split live traffic by weight, compare per-variant results, and promote the one you want.
By Emily Lane
July 09, 2026

AI Localization
Localize Courier templates in seconds with AI Translation, now available in Design Studio for email, SMS, push, in-app, and chat.
By Emily Lane
June 29, 2026

Embed Notification Preferences with One Web Component
Embed a complete notification preferences center in your app with Courier’s Web Component, giving users control over topics, channels, digests, and themes.
By Emily Lane
June 05, 2026
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