Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records.

Email marketing skill for Claude Code. 55K words, 908 sources, 19 industry playbooks. Install the skill and Claude becomes your email marketing expert.

Obtain an email full profile including reputation, consistency, deliverability, social networks account linked, plus more data points.

📧 Never end in spam with the world's most comprehensive email deliverability checklist

🚀 Premier Model Context Protocol server for SmartLead cold email marketing automation. Complete API integration with 113 tools for campaign management, lead tracking, deliverability optimization, and analytics. Works with Claude Desktop, Cursor, Windsurf, Continue.dev. Zero-config NPX installation.

SocketLabs Email Delivery Python Client Library

SocketLabs Email Delivery PHP Client Library

SocketLabs Email Delivery .NET Client Library

Magento2 - Brevo (formerly Sendinblue) Integration Module

SocketLabs Email Delivery Node.js client library

Gmail Postmaster Tools (v2 API) as an MCP server — domains, traffic metrics & sender compliance in Claude, Cursor, and any MCP client. Bring your own Google OAuth. Zero dependencies.

Mautic plugin for processing Amazon SNS notifications, including bounce and complaint feedback for improved email deliverability management

SendX's best practices for message performance, email sending deliverability and compliance.

SocketLabs Email Delivery Go Client Library https://www.socketlabs.com

Outlook.com SNDS (Smart Network Data Services) as an MCP server — OAuth sign-in, IP Data & IP Status reports in Claude, Cursor, and any MCP client. Zero dependencies.

Test your Email Deliverability by schedule and receive email reports.

Email Deliverability and DNS Records Checker

Complete CLI and MCP server for Smartlead — 270+ commands, reverse-engineered internal endpoints, and Claude Code skills. Built by GTM engineers, free for the community.

QUEUEMAIL.DEV docs & examples

Magento2 - Brevo (formerly Sendinblue) "Contact sync only" Lightweight Integration Module