Security & Testing

mail7.net

Validates email addresses and audits domain email configurations (MX, SPF, DKIM, DMARC, etc.) to ensure deliverability and security.

1 endpoint4 known toolsFirst detected August 13, 2026Last detected September 6, 2026

ENDPOINT 1

https://mail7.net/mcp

No auth detected

MCP server metadata

Name: mail7
Version: 0.1.0

Capabilities

tools

Server instructions

Tools for checking whether email addresses are real and whether a domain's mail setup is sound. Results are Valid, Not Valid or Unknown - Unknown means the mailbox could not be verified, not that it is bad, so never delete or reject Unknown addresses.

Known tools 4

validate_email

Check whether a single email address is deliverable: syntax, domain MX records, disposable-domain database and a live SMTP mailbox probe.

Potential side effects

validate_emails

Check up to 25 email addresses in one call and get a per-address verdict plus a summary.

Potential side effects

check_domain

Audit a domain's email setup in one call: MX records, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, DNSSEC and BIMI, graded A-F with a fix for every problem found.

Potential side effects

check_spf

Fetch and analyse the SPF record of a domain: the raw record, its mechanisms, lookup count and common misconfigurations.

Inferred read-only

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.mail7]
url = "https://mail7.net/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "mail7": {
      "type": "http",
      "url": "https://mail7.net/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: mail7
Remote MCP URL: https://mail7.net/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": {
    "mail7": {
      "url": "https://mail7.net/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "mail7": {
      "type": "http",
      "url": "https://mail7.net/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "mail7",
  "transport": "streamable-http",
  "url": "https://mail7.net/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.