Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add --transport http pipefire-email-deliverability-tools https://pipefire.ai/mcp~/.codex/config.toml
[mcp_servers.pipefire-email-deliverability-tools]
url = "https://pipefire.ai/mcp"
# codex mcp add pipefire-email-deliverability-tools --url https://pipefire.ai/mcp~/.cursor/mcp.json
{
"mcpServers": {
"pipefire-email-deliverability-tools": {
"url": "https://pipefire.ai/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"pipefire-email-deliverability-tools": {
"type": "http",
"url": "https://pipefire.ai/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"pipefire-email-deliverability-tools": {
"httpUrl": "https://pipefire.ai/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"pipefire-email-deliverability-tools": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://pipefire.ai/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"pipefire-email-deliverability-tools": {
"url": "https://pipefire.ai/mcp"
}
}
}