MCP server

DMARKOFF — DMARC, SPF & DKIM Analytics Official

com.dmarkoff/mcp

Checked 26 Oct 2026, 08:29 UTC · It answered and asked for a sign-in

DMARC analytics for AI assistants: SPF/DKIM, compliance, anomalies, p=reject readiness, onboarding.

Needs an API keyVerified publisher: dmarkoff.com

https://mcp.dmarkoff.com/mcp

At a glance

Type: MCP server
Publisher: dmarkoff.com (verified by the MCP Registry)
Status: Needs an API key
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http dmarkoff https://mcp.dmarkoff.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.dmarkoff]
url = "https://mcp.dmarkoff.com/mcp"

Gemini CLI

{"mcpServers":{"dmarkoff":{"httpUrl":"https://mcp.dmarkoff.com/mcp"}}}

Cursor

{"mcpServers":{"dmarkoff":{"url":"https://mcp.dmarkoff.com/mcp"}}}

VS Code

{"servers":{"dmarkoff":{"type":"http","url":"https://mcp.dmarkoff.com/mcp"}}}

Antigravity

agy mcp add dmarkoff https://mcp.dmarkoff.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"dmarkoff","server_url":"https://mcp.dmarkoff.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"dmarkoff","server_url":"https://mcp.dmarkoff.com/mcp"}

Needs an API key or token from its maker, usually added as a header in the setup.

DataNexus MCP
Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.
Couryo free email tools
Free, no login: verify an email address, check SPF/DKIM/DMARC, explain SMTP errors, build SPF/DMARC.
scan.mx Email Diagnostics
Email deliverability check: MX, SPF, DKIM, DMARC, blacklists, MTA-STS, DNSSEC, BIMI. Graded, no key.
MX Verdict
Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.
Pipefire email deliverability tools
Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Dns Doctor
Scan, fix, verify and monitor DNS: SPF, DMARC, DKIM, propagation, health, expiry. Validated fixes.
WarmInboxes Free Deliverability Tools
Free cold email deliverability checks, list tools, inbox planning and original placement research.
BlackVeil DNS & Email Security Scanner
DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

[![AptLynx](https://aptlynx.net/badge/com.dmarkoff/mcp.svg)](https://aptlynx.net/servers/com.dmarkoff/mcp)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents