Tmailor MCP: receive-only inboxes for AI agents

Tmailor gives AI agents receive-only temporary email addresses. Its MCP server works in three moves: create an inbox, wait for an email to arrive, then read it. That covers an agent confirming an account during an end-to-end test. ContextGate connects Tmailor to Claude, ChatGPT and Cursor and records each inbox an agent opens.

  • Ready to connect
  • Free

Add Tmailor inboxes to your agent's toolkit

  1. 1Click Connect Tmailor free and sign in with your Tmailor account.
  2. 2The tools are listed after you connect, all on. The addresses are receive-only, so nothing can be sent from them; switch off any tool your tests don't call.
  3. 3Add ContextGate to your AI app as a connector or MCP server. The steps for each app are on the Works with page.
  4. 4Ask your AI app to create a Tmailor inbox, register with it on your test site and wait for the welcome email, then open Activity to see the wait and read calls.

Where a receive-only inbox helps

  • Create a fresh address for each test run so results don't collide.
  • Have the agent wait for an email to arrive instead of checking a mailbox by hand.
  • Read the email once it lands and act on it, such as following a confirmation link.

Keep an eye on agent inboxes

  • Activity records every create, wait and read in order, so a failed test is easier to follow.
  • Switch off any Tmailor tool and it's hidden from your AI app; calls to it are refused.

What you get with Tmailor and ContextGate

  • Your AI apps can use TmailorClaude, Cursor, ChatGPT and other AI apps reach Tmailor through the one ContextGate connection you add to them.
  • You choose which tools they can useSwitch off any Tmailor tool you don't want used. It's hidden from your AI apps and refused if called.
  • Every call is checked and recordedYour policies check each call (for example, personal data is hidden and secrets are blocked), and Activity keeps a record of it.

ContextGate sees only the tool calls that go through it, not your AI app's built-in tools or your chats.

Tmailor tools

Tmailor's own MCP server shows its tools once you sign in. When you connect it, they are listed and synced in your workspace.