Accelerate building resiliency into systems with Cloudflare Workers

What this post added

Introduced a weighted traffic routing module implemented as a Cloudflare Worker to improve the resiliency of email notification systems. This worker sits between internal services and external Email Service Providers (ESPs), dynamically routing emails based on configurable weights. This approach allows for rapid failover between ESPs during outages, maintains sender reputation by ensuring continuous traffic to all configured ESPs, and leverages Workers for automatic scaling and near-instantaneous global deployment upon configuration changes.