Category
Engineering
Engineering deep dives on inbound email parsing, webhook delivery, JSON contracts, mapping, idempotency, and receiver design.
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Email to Webhook in Node.js, Python, and Go: Complete Implementation Guide
Build an email to webhook receiver with complete working Node.js, Python, and Go code for HMAC verification, idempotency, and async handoff.
Inbound Email Processing Architecture: How to Turn Raw Email Into Trusted Webhook Events
Most teams think inbound email ends with parsing. I show the four-stage inbound email processing architecture: normalization, routing, transformation, and delivery.
Why Retries and Duplicates Break Trust in Email Webhooks
As email moves into production workflows, retry behavior becomes a trust decision. I break down the design rules that keep outcomes consistent.
MIME Parsing Is More Hostile Than It Looks
I have learned that email parsing feels easy right up to the moment real traffic arrives. MIME structure, headers, and body variants turn small parser misses into routing bugs, bad payloads, and su...
Why Custom IMAP Scripts Age Badly
I have seen plenty of teams inherit a tiny mailbox script that looked harmless at launch. A few years later, it owns retries, auth workarounds, folder mapping, and production risk. In this post, I ...