Latest news, tutorials, and insights about email automation, AI agents, and developer tools.
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
Email is still the default “out-of-band” channel for signups, password resets, invite links, and one-time passcodes, which makes it the most commo...
Jason Macdown
8 min read
A “personal domain email address” sounds simple: buy a domain, create a few aliases, and use them in tests. In practice, that approach often cre...
Jason Macdown
10 min read
When people search for “receive email address via API,” they often mean something deceptively simple: “give me an address I can send to, and tell ...
Jason Macdown
10 min read
Most “temp email” solutions optimize for humans: open a random inbox in a browser tab, copy a throwaway address, read an email, then forget it. Th...
Jason Macdown
9 min read
When you build automated signups, OTP verification, or account recovery flows, the choice of temp email domains is not a cosmetic detail. It det...
Jason Macdown
11 min read
If you started with shared domains for disposable inboxes, you made the right trade-off: zero DNS work, fast iteration, and a clean way to unblock...
Jason Macdown
9 min read
When teams search for disposable email with custom domain , they usually want one thing: verification and notification emails that arrive reliabl...
Jason Macdown
10 min read
Agents fail at email for the same reason humans succeed at it: email was designed to be read, not integrated. A human can glance at a subject li...
Jason Macdown
10 min read
Email-dependent automation fails in a very specific way: it works perfectly until you add retries, parallelism, or an LLM agent that can take acti...
Jason Macdown
10 min read
Email-based sign-in (magic links) feels simple for users, but it is one of the easiest E2E tests to make flaky. You are coordinating multiple syst...
Jason Macdown
11 min read
Email verification is one of the most security-critical parts of an app, and also one of the flakiest parts of automated testing. OTP emails arriv...
Jason Macdown
9 min read
When you move email-dependent automation from “one shared mailbox” to “inbound email as an API,” the first architectural decision is almost always...
Jason Macdown
10 min read
Parallel CI is great at finding real bugs, and brutal at exposing unreliable test infrastructure. Email tests are often the first to fall apart: o...
Jason Macdown
10 min read