How to Verify Email Addresses with ChatGPT
Check email validity with ChatGPT and ToolRouter. Verify addresses are real and deliverable.
Tool
ChatGPT validates email addresses and presents the result in a clear format — valid, invalid, disposable, or risky — with enough context to take immediate action. Useful when reviewing contact details from forms or lists.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
Steps
Once connected (see setup above), use the Email Validator tool:
- Ask: "Check if this email is valid: example@domain.com"
- ChatGPT returns the validation status and any risk flags
- Ask: "What should I do if it comes back as disposable?"
- Act on the result — include, exclude, or follow up for a better address
Example Prompt
Try this with ChatGPT using the Email Validator tool
Validate this email and tell me whether I should add it to my mailing list: user@somedomain.com
Tips
- Ask ChatGPT what a "risky" vs "invalid" verdict means for your specific use case
- For form signups, validate before saving to your database to keep records clean from the start
- Ask whether the domain exists as a legitimate business if you are qualifying B2B leads