Latest news, tutorials, and insights about email automation, AI agents, and developer tools.
An AI agent does not need a mailbox in the way a person does. It does not need a place to read newsletters, keep years of receipts, search old thr...
Jason Macdown
15 min read
If your test suite covers signups, password resets, OTPs, magic links, invite acceptance, or agent-driven onboarding, email is part of the product...
Jason Macdown
13 min read
Email-dependent tests fail for a simple reason: email is not a function call. It is a distributed delivery system with queues, retries, MIME parsi...
Jason Macdown
15 min read
An API email workflow for an LLM is not just a way to fetch messages. It is a contract between an agent, an inbox provider, and your application s...
Jason Macdown
13 min read
If you are building CI tests, QA automation, or LLM agents that must receive emails (OTP, magic links, invoice PDFs, support replies), “just use...
Jason Macdown
9 min read
Email receipt is one of the most common sources of flaky end to end tests, because it is the point where your deterministic test runner meets the ...
Jason Macdown
11 min read
Shared inboxes are the fastest way to turn temp email login tests into a flaky, non-debuggable mess. They work for one developer clicking around...
Jason Macdown
10 min read
Most “inbox automation” demos break the moment they hit real operations email: duplicates, late arrivals, threads, forwards, and security review. ...
Jason Macdown
10 min read
Email is a great verification channel for humans because it tolerates latency, retries, and messy formatting. For agents, it is the opposite: emai...
Jason Macdown
9 min read
If your test suite needs a fresh email address on every run, you are usually trying to avoid three things: mailbox collisions, parallel CI races, ...
Jason Macdown
8 min read
Filtering email sounds like a simple parsing problem until you let an AI agent do it in production. The moment you rely on a subject regex, a “Fro...
Jason Macdown
10 min read
Email is still the most common “outside the app” step in modern workflows, sign-ups, password resets, magic links, OTPs, invoices, onboarding, and...
Jason Macdown
9 min read
CI failures caused by email are rarely “email problems.” They are isolation problems (shared mailboxes), observability problems (no stable IDs), a...
Jason Macdown
8 min read
If you are building email-driven automation (CI, QA, or LLM agents), “email address authentication” can mean two very different things: Is th...
Jason Macdown
10 min read
Email is one of the messiest interfaces you can hand to an autonomous agent. Messages arrive late, duplicate deliveries happen, HTML is hostile, a...
Jason Macdown
8 min read
Email-dependent tests fail in the most annoying way: not because your code is wrong, but because your harness is vague. A “wait for an email” step...
Jason Macdown
11 min read
Inbound email looks deceptively simple: point MX records at a provider, then wait for messages. In practice, the hard part is address routing : d...
Jason Macdown
10 min read
Email verification looks simple on a whiteboard: generate a token, send an email, click a link, mark the user verified. In production and especi...
Jason Macdown
11 min read
If you are building AI agents that can sign up for services, verify accounts, reset passwords, or complete onboarding flows, email is not “just an...
Jason Macdown
11 min read
Email is one of the last “human-first” protocols that modern systems still depend on. If you’re building CI tests, QA automation, or LLM agents th...
Jason Macdown
9 min read