MCP server: One MCP server.

Postbox Services - Email Deliverability & Security Tools

@postboxservicesRun by its publisher: served from their own domain, namespace checked by the registry.MCP server · External

Free email checks: 24 blacklists, spoofing/BEC grade, redirect tracing, email spam test, WHOIS.

Freeno charge per call

One address for any MCP client. No sign-in needed on this server.

What it does

6 read1 act1 other

Grouped by tool name. At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Tools

8 · grouped by tool name · checked 10 Oct 2026

Read · 6Look things up

  • check_blacklist
  • check_spoofability
  • get_mailtest_result
  • analyze_eml
  • get_domain_age
  • whois_lookup

Act · 1Change something

  • create_mailtest

Other · 1Neither hinted nor named

  • trace_redirect
Try it in the Inspector

No README yet. What Odel knows about this module is on the right.

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