How to Verify Email Addresses with OpenClaw
Automate email validation with OpenClaw and ToolRouter. Verify addresses at scale before sending.
Tool
OpenClaw validates email addresses in bulk — clean a contact list before a campaign, process new signups in batches, and maintain a verified list without manually checking addresses one by one.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsSteps
Once connected (see setup above), use the Email Validator tool:
- Provide a list of addresses: "Validate each of these email addresses"
- OpenClaw checks each and returns a verdict for every address
- Ask: "Which addresses should I remove from my send list?"
- Export the clean list for your campaign
Example Prompt
Try this with OpenClaw using the Email Validator tool
Validate each email in this list and return a table with the address, verdict (valid/invalid/disposable/risky), and whether to include in the send list: [list of emails].
Tips
- Run validation before every campaign to prevent bounce accumulation over time
- Ask OpenClaw to separate results into a confirmed send list and a flagged list for review
- Validate new signups in batches nightly to keep your list clean without real-time delays