DMARC Shark — Email DNS Checker

com.dmarcsharkPublished by dmarcshark.comOfficial publisherv1.0.0Updated Oct 25, 2026

Check a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.

VerifiedStreamable HTTPWeb executable

Overview

DMARC Shark — Email DNS Checker's hosted MCP server (dmarcshark.com), published by dmarcshark.com; no sign-in required; Streamable HTTP; 2 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
dmarcshark.com
Endpoint
dmarcshark.com
Last checked

Installation

In SourceWeft

  1. Open DMARC Shark — Email DNS Checker in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.dmarcshark%2Femail-dns-checker/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "dmarc-shark-email-dns-checker": {
      "type": "http",
      "url": "https://dmarcshark.com/mcp"
    }
  }
}

README

This repository has no README.

Tools

2

check_domain

Check a domain's public email DNS

Runs fresh, bounded public SPF, DMARC, MX and optionally specified DKIM-selector DNS checks. Changes the public saved snapshot. Rate limited. DNS findings do not prove message authentication.

Parametersdomainrequiredselectors

get_saved_result

Read a saved domain check

Reads the last saved, timestamped public snapshot without making any DNS queries. Results expire after 90 days.

Parametersdomainrequired

Version history

1
  1. v1.0.0LatestOct 19, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

Other Dmarcshark integrations

POSH — Ruby documentation

Published by GitHub account skatkov

Searches and reads local Ruby and gem documentation matched to your project's versions, so an assistant can look up APIs without leaving the editor.

STDIODesktop only
Knowledge & MemoryNot validated · the package type cannot run in the sandboxOct 30, 2026