Latest news, tutorials, and insights about email automation, AI agents, and developer tools.
Email-based sign up verification tests tend to fail in the most annoying way: they are “mostly fine” until CI runs in parallel, a test retries, or...
Jason Macdown
10 min read
When people search “create domain email address,” they often mean “give my app a unique, routable email recipient on my domain, and let code read ...
Jason Macdown
11 min read
Email is one of the most failure-prone dependencies in QA. A test can be correct and still flake because the inbox is shared, the message arrives ...
Jason Macdown
8 min read
Most teams pick a disposable email domain the same way they pick a random test password: whatever works today. Then CI goes parallel, an allowlist...
Jason Macdown
9 min read
Email is one of the last “human-shaped” dependencies in automated systems. The moment you ask a test runner or an LLM agent to receive an email ,...
Jason Macdown
9 min read
CI is great at running code, but it’s notoriously bad at one thing your product probably depends on: email. If your tests cover signups, password ...
Jason Macdown
10 min read
Email is one of the last “messy” dependencies in automated testing. Your test runner can be perfectly deterministic, yet the email step fails beca...
Jason Macdown
9 min read
When you say “get an email address programmatically” for testing, you usually mean something more specific than “generate a random string that loo...
Jason Macdown
9 min read
AI agents are becoming first class API consumers. The moment you let an agent call tools on its own, you run into a practical problem: how does t...
Jason Macdown
10 min read
Seeing “email signed by” in Gmail (or similar UI cues in other clients) is a reminder that identity and integrity matter in email workflows. But...
Jason Macdown
8 min read
Email is one of the last “human” side channels that still sneaks into automated systems. The moment your CI job, signup test, or LLM agent has to ...
Jason Macdown
9 min read
Email-dependent test flows are where “it works on my machine” goes to die. The email arrives late, lands in the wrong inbox, gets resent, or comes...
Jason Macdown
9 min read
Email is a stubborn dependency in automation. It arrives late, duplicates happen, HTML templates change, and MIME edge cases quietly break parsers...
Jason Macdown
10 min read
Email is still the “last mile” for a surprising number of product workflows: account verification, password resets, magic links, invoices, alerts,...
Jason Macdown
9 min read
Email is still the backbone of signups, password resets, vendor onboarding, and countless “verify this action” workflows. But for developers, a tr...
Jason Macdown
10 min read
Email looks like a simple input, but in real automation it behaves like an unreliable event stream: retries, duplicates, encoding quirks, multi-pa...
Jason Macdown
9 min read
If you are building automation that “waits for an email,” the hard part is rarely parsing HTML. The hard part is routing: how a message addressed ...
Jason Macdown
11 min read
When email-based tests get flaky, teams usually blame timing, parsing, or the sender. In practice, email domains are a common hidden variable: t...
Jason Macdown
9 min read
Signup flows look simple until you automate them. Then you discover a frustrating reality: the sign up email is the noisiest part of the pipeline...
Jason Macdown
10 min read
Most “instant email” tools are built for humans: open a web page, refresh until something arrives, copy a code. Agents and automated QA need somet...
Jason Macdown
10 min read