Async email notification pipeline
Published: 18.07.2024 12:00
AP
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Async email notification pipeline
Python
A Celery + Redis worker pipeline that sends transactional emails asynchronously, with retry logic and dead-letter tracking.
Eliminated request timeouts and provided visibility into delivery failures.
Problem
Sending emails synchronously during request-response cycles caused timeouts and blocked the web server under load.
Solution
Extracted email dispatch into Celery tasks backed by Redis, added exponential back-off retries and a Django admin view for failed tasks.