mambalabsdev/mcp-domain-deliverability-checker

Overview

An MCP server that checks email deliverability indicators for domains including SPF, DKIM, DMARC, MX records, blacklist status, catch-all detection, and domain age. It is designed to work with Clay (a data enrichment platform) for automated domain validation in outreach workflows.

Best for

Best for
Developers integrating domain deliverability validation into sales or marketing automation systems

Use cases

• Validate domain email deliverability before sending cold emails
• Assess domain reputation and technical setup for lead scoring
• Automate pre-contact domain checks in CRM or marketing pipelines

Notes

An MCP server that checks email deliverability indicators for domains including SPF, DKIM, DMARC, MX records, blacklist status, catch-all detection, and domain age. It is designed to work with Clay (a data enrichment platform) for automated domain validation in outreach workflows.

0 stars on GitHub. Last updated 2026-06-19. Licensed MIT.

Use cases

• Validate domain email deliverability before sending cold emails
• Assess domain reputation and technical setup for lead scoring
• Automate pre-contact domain checks in CRM or marketing pipelines

Pros

• Covers multiple key deliverability factors in one request
• Ready-to-use as an MCP server for integration with tools like Clay
• Lightweight JavaScript implementation

Cons

• No community adoption yet (0 stars) implies early stage and potential instability
• Requires self-hosting an MCP client or server environment
• Limited documentation or support beyond the basic readme

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.