How to Bulk Validate Email Lists with ChatGPT
Clean email lists with ChatGPT and ToolRouter. Bulk validate addresses before your next campaign.
Tool
ChatGPT processes an email list and delivers a clean summary — how many are valid, how many should be removed, and a filtered list ready to use. Structured for immediate action rather than requiring you to interpret raw results.
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:
- Paste your list: "Clean this email list before I send a campaign"
- ChatGPT validates each address and returns the results
- Ask: "Give me just the verified safe addresses as a clean list"
- Copy the clean list directly into your email tool
Example Prompt
Try this with ChatGPT using the Email Validator tool
Validate this email list and give me three outputs: a safe-to-send list, a list to review, and a list to delete. Here are the addresses: [paste list].
Tips
- Ask ChatGPT to output the clean list in a format your email tool accepts directly
- Request a list health percentage — "What portion of this list is deliverable?"
- Ask ChatGPT to identify patterns in invalid addresses, like a specific domain that is expired