- CLEAN
- READY
- ACTIVE
- HUMAN
Short answer
How can I use AI to automate my Mailtrap sandbox testing?
Your agent uses Mailtrap tools to find available sandboxes, fire off test emails, and clear out old messages once a test run finishes. This keeps your testing cycles predictable and your inboxes empty. You get a clean slate for every test run.
Testing outcomes
Clean testing environments
What happens when your agent runs a test cycle.
CLEAN
Empty inboxes
The agent clears out old test data so you don't have to hunt through stale emails. You always start with a fresh environment.
READY
Sandbox availability
The agent identifies which sandboxes are ready for use. You won't waste time trying to send mail to an inactive environment.
ACTIVE
Email delivery
The agent sends the specific test payloads you need. It handles the actual transmission to the sandbox targets.
HUMAN
Manual review
You decide when a test passes or fails. The agent handles the plumbing, but you keep control over the final validation.
The workflow
What your AI does when the test starts.
The agent takes over the repetitive tasks of environment management and message delivery.
Locate sandboxes
The agent checks your Mailtrap account to see which sandboxes are available for the current test run.
list_sandboxesSend test mail
Once a target is identified, the agent sends the test email directly to the sandbox address.
send_test_emailVerify delivery
The agent confirms the email reached the destination before moving to the next step.
send_test_emailWipe environment
After the test is complete, the agent empties the inbox to prevent data overlap in the next run.
clear_sandbox_inbox
Try it
Copy these to start.
Use these prompts to kick off your testing automation.
Starting points
Swap out the bracketed info for your specific sandbox names or email addresses.
Mailtrap Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_Ad5Juop0aQx2ay54WiDoJvVK7YtPyDjMRVyTPy0Y/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Mailtrap capabilities are ready to use.
{
"mcpServers": {
"mailtrap-mcp": {
"url": "https://edge.vinkius.com/vk_preview_Ad5Juop0aQx2ay54WiDoJvVK7YtPyDjMRVyTPy0Y/mcp"
}
}
}List all my Mailtrap sandboxes so I can pick one for testing.
Send a test email to the 'staging-sandbox' with the subject 'Health Check'.
Clear the inbox for the 'qa-testing' sandbox after I finish this run.
Find an available sandbox and send a test email to it.
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Start here
Connect Mailtrap once, then ask.
You only need to link your account once. Your credentials stay encrypted, and you can immediately start giving commands to your agent.
Connect Mailtrap to your AIFAQ
How the Mailtrap Connector behaves
- 01
Can the AI delete my entire Mailtrap account?
No. The agent only has permission to list sandboxes, send emails, and clear inboxes.
- 02
Will the AI clear my production inboxes?
No. The agent can only clear inboxes for the sandboxes it can access through the provided tools.
- 03
Does the agent decide if a test passed?
No. The agent performs the actions, but you are responsible for inspecting the results and deciding if the test was successful.
- 04
Can I use this to send real emails to customers?
No. This connector is designed for sandbox testing environments, not for sending mail to real users.
- 05
How does the agent know which sandbox to use?
You tell the agent which sandbox to use in your prompt, or it can find one using the list tool.
More questions about Mailtrap? The Connector page answers them. See everything the Mailtrap Connector can do
Connect Mailtrap to Claude, Cursor, ChatGPT & more
