Domain Deliverability Checker MCP server
{
"mcpServers": {
"mamba-domain-deliverability-checker": {
"command": "npx",
"args": [
"-y",
"@mambalabsdev/mcp-domain-deliverability-checker@latest"
],
"env": {
"APIFY_TOKEN": "<apify_token>"
}
}
}
}{
"mcpServers": {
"mamba-domain-deliverability-checker": {
"command": "npx",
"args": [
"-y",
"@mambalabsdev/mcp-domain-deliverability-checker@latest"
],
"env": {
"APIFY_TOKEN": "<apify_token>"
}
}
}
}{
"mcpServers": {
"mamba-domain-deliverability-checker": {
"command": "npx",
"args": [
"-y",
"@mambalabsdev/mcp-domain-deliverability-checker@latest"
],
"env": {
"APIFY_TOKEN": "<apify_token>"
}
}
}
}{
"servers": {
"mamba-domain-deliverability-checker": {
"command": "npx",
"args": [
"-y",
"@mambalabsdev/mcp-domain-deliverability-checker@latest"
],
"env": {
"APIFY_TOKEN": "${input:apify_token}"
}
}
},
"inputs": [
{
"id": "apify_token",
"type": "promptString",
"description": "Apify token",
"password": true
}
]
}{
"mcpServers": {
"mamba-domain-deliverability-checker": {
"command": "npx",
"args": [
"-y",
"@mambalabsdev/mcp-domain-deliverability-checker@latest"
],
"env": {
"APIFY_TOKEN": "<apify_token>"
}
}
}
}file .mcp.json (in your project root)file claude_desktop_config.jsonfile ~/.cursor/mcp.jsonfile .vscode/mcp.jsonfile ~/.codeium/windsurf/mcp_config.jsoninstall npx -y @mambalabsdev/mcp-domain-deliverability-checkerversion 1.0.1
What it does
This server provides a single tool that audits email deliverability for a domain by checking SPF, DKIM, DMARC, MX records, DNS blacklist status, catch-all configuration, and domain age, then returns a 0-100 deliverability score. It is for developers who need to assess whether a domain can reliably send email.
- Check if a domain has proper email authentication records (SPF, DKIM, DMARC) configured correctly.
- Audit multiple domains at once in batch mode to identify which ones may have email delivery issues.
- Determine if a domain is listed on DNS blacklists or what mail provider it uses.
Tools this server exposes
| Tool | Does |
|---|---|
| check_domain_deliverability | Audit a domain's email deliverability by checking SPF, DKIM, DMARC, MX records, blacklist status, catch-all configuration, and domain age, returning a 0-100 sco |
Before you enable it
An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.