Tutorials
14 posts on tutorials for AI agents that send and receive email.
6 August 2026 · 3 min read
A test suite for an agent that writes email
How to write the golden thread harness in code: fixtures, assertions on actions rather than wording, a fake mail client, and the adversarial cases worth pinning.
6 August 2026 · 4 min read
It sent the wrong thing. Now what
A wrong reply has five common causes and each leaves a different trace. How to find which one it was, in order, without reading message bodies out of a log.
4 August 2026 · 3 min read
Email tools for an agent built with the Vercel AI SDK
Define email as typed tools, keep the loop bounded, and put the untrusted message where it cannot reach a privileged call. A working shape with the parts that matter explained.
4 August 2026 · 3 min read
No SDK for your language, and it does not matter
The whole surface is an HTTP API with a bearer token. What the four calls look like in Go, Ruby, and PHP, and the three things to get right whatever you write it in.
3 August 2026 · 4 min read
Connecting a hosted client that cannot hold a key
Some clients cannot store an API key, so they authorize as you instead. How the OAuth flow works, what the scopes cover, why a token needs an agent header, and when to prefer a key.
3 August 2026 · 4 min read
Running an email agent on ordinary Node infrastructure
Not everything runs on the edge. The same agent as a Node service: webhook endpoint, a queue, per-thread locking in Postgres, and the deployment details that decide whether it survives a burst.
1 August 2026 · 4 min read
An email agent without writing a service
Wire an inbox to an automation tool: receive with a webhook, decide with an LLM step, reply through one HTTP call, and the four things to get right so it does not double-send.
1 August 2026 · 4 min read
Adding email to a LangChain or LangGraph agent
Wire an inbox into a LangChain or LangGraph agent: MCP where the adapter exists, plain tools where it does not, and where the email work belongs in a graph.
30 July 2026 · 3 min read
An email agent in TypeScript, from empty folder to first reply
A working TypeScript agent with its own inbox: install, send, read the thread, wait for a reply, handle refusals, and receive inbound mail without a polling loop.
30 July 2026 · 4 min read
Giving an OpenAI-based agent an email address
Connect a GPT-based agent to a real inbox: MCP where the tooling supports it, plain function tools where it does not, and the guardrails to set before it emails anyone.
30 July 2026 · 4 min read
Driving an agent's inbox from the terminal
The CLI is the fastest way to see what an agent is doing: list its mail, read a thread, send a test message, and script the checks worth running in CI.
27 July 2026 · 4 min read
Sending and receiving email from a Python agent
A working Python agent with its own inbox: install the SDK, send a first message, read threads, wait for replies, handle refusals, and receive inbound mail without a polling loop.
27 July 2026 · 4 min read
Build an email agent on the Cloudflare Agents SDK
A working email agent as a Durable Object: connect the MCP server, react to inbound mail through a webhook, hold a thread across days, and keep the whole thing idempotent.
25 July 2026 · 5 min read
How to let Claude send and receive email
Connect Claude to a real inbox in a few minutes with an MCP email server: config, the first send, holding a conversation, and the limits worth knowing before you let a model email people.