How to Verify Email Addresses with Copilot
Validate emails in your IDE with Copilot and ToolRouter. Add email verification to your application.
Tool
Copilot adds email validation to your application logic — verify addresses at point of entry, block disposable email domains, and generate the integration code to embed validation in your signup or form processing flow.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
Steps
Once connected (see setup above), use the Email Validator tool:
- In Copilot Chat: "Validate this email address: test@example.com"
- Copilot returns the validation result
- Ask: "Write TypeScript code to call the validate_email skill on user input"
- Integrate validation into your signup or CRM form handler
Example Prompt
Try this with Copilot using the Email Validator tool
Validate test@example.com and write a TypeScript function that calls the validate_email skill and blocks submission if the result is invalid or disposable.
Tips
- Add email validation as a server-side check on form submission, not just client-side
- Ask Copilot to write error messages appropriate for each validation failure type
- Use the validation result to route users to a re-entry flow when the address is flagged