Postbox Services - Email Deliverability & Security Tools

Description

Free email deliverability and security checks by [Postbox Consultancy Services](https://postboxservices.com/) - live DNS, real blacklist queries and actual SMTP analysis instead of guesses from training data. **8 tools:** email blacklist check (24 DNSBLs incl. Spamhaus ZEN, Barracuda, SpamCop), spoofing/BEC exposure grade (A-F), URL redirect chain tracer with phishing flags, two-step email spam test (disposable address -> /10 score), raw .eml analysis, domain age, WHOIS. Open access, no account, no API key. Fair-use limits. Email files are processed in memory and never stored; logs hold metadata only. Setup guides with screenshots (claude.ai, Claude Desktop, Claude Code, ChatGPT, Grok, Cursor): https://postboxservices.com/mcp/ - Official registry: `com.postboxservices/postbox-tools`

Community Metrics

Categories

• mcp

Tags

• mcp
• smithery

Capabilities

• Remote MCP server

Information