Security & Testing

mailsecuritytools.com

Checks and scores domain email security (SPF, DMARC, DKIM, MX), validates email addresses, and provides prioritized fix plans with DNS record instructions.

x402 supported1 endpoint5 known toolsFirst detected October 15, 2026Last detected October 15, 2026

ENDPOINT 1

https://api.mailsecuritytools.com/mcp

No auth detected

MCP server metadata

Name: mailsecuritytools
Version: 1.0.0

Capabilities

tools.listChanged

Server instructions

Mail Security Tools: check a domain's email security. check_domain_email_security (free) returns MX, SPF, DMARC and DKIM. email_security_score ($0.01) grades it 0-100. email_fix_plan ($1) returns the exact DNS records to publish. check_email_address ($0.01) checks one address. Payment is x402 USDC on Base in _meta['x402/payment']; invalid or failed calls are not charged. Daily monitoring: InboxGuards (inboxguards.com).

Known tools 5

check_domain_email_security

Free.

Inferred read-only

pricing

Free.

Inferred read-only

email_security_score

Grade a domain's email security 0-100 (A-F): SPF 30, DMARC 40, DKIM 25, MX 5, from live DNS, with findings and the top 3 fixes.

Potential side effects

check_email_address

Check one email address: syntax, MX / null MX, disposable domain, role account, free provider; verdict ok / risky / undeliverable.

Potential side effects

email_fix_plan

Email security fix plan for one domain: the exact SPF, DKIM and DMARC records to publish (create / replace / keep, name, value, why), in order, with click-path steps for the domain's DNS host and a staged DMARC rollout.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.mailsecuritytools]
url = "https://api.mailsecuritytools.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "mailsecuritytools": {
      "type": "http",
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: mailsecuritytools
Remote MCP URL: https://api.mailsecuritytools.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "mailsecuritytools": {
      "url": "https://api.mailsecuritytools.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "mailsecuritytools",
  "transport": "streamable-http",
  "url": "https://api.mailsecuritytools.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.