"A guide to sending email" matching MCP servers:

Enables pushing enriched leads into Instantly or Smartlead campaigns with ICP score gating, deduplication, and dry-run previews via an Apify actor.

Resolves a company domain to its LinkedIn company page URL. Lightweight enrichment tool for sales and prospecting workflows.

Enables finding and verifying work emails for contacts through a waterfall of provider keys, with per-provider cost attribution and verification after each finder.

Connects Claude to Jobber to manage clients, jobs, invoices, quotes, and scheduling through natural language.

MCP server for emailfinder.dev that enables AI assistants to find verified professional email addresses via name/domain, LinkedIn URLs, company domains, roles, and email validation.

Outbound sales agent for Claude Code. MCP server handles prospect list building, dedup, quotas, and structured rejection feedback, while the plugin runs per-prospect research, email writing, Gmail sending, and reply tracking. Open source, self-hostable.

Enables users to search domains, find and verify email addresses, enrich people and companies, discover companies, and manage leads through the Hunter.io API.

A production-ready MCP server that connects AI assistants to the D-Tools System Integrator platform, enabling natural language management of AV projects, clients, catalogs, tasks, service orders, and purchase orders.

Integrates with the Tomba.io API to provide email discovery, verification, enrichment, phone lookup, and company research capabilities through standardized MCP tools, resources, and prompts.

Analyze LinkedIn & email outreach campaigns, track pipeline performance, and review lead conversations for RevOps, Sales Managers, and SDR teams.

Enables AI assistants to access toflow.ai workspace for prospecting, multi-channel outreach (email, LinkedIn, WhatsApp), sequences, enrichment, CRM, and AI automations.

Enables sending SMS messages, managing contacts, campaigns, and inbox from AI assistants like Claude and ClickUp.

Enables AI assistants to securely connect to a vybeflow tenant for multi-channel messaging operations such as reading inbox tickets, looking up contacts, checking campaign progress, and sending messages under scoped permissions.

Provides tools for AI agents to query customers by email, list open deals, and update deal stages with business rule enforcement.

A unified MCP server that connects HubSpot, Clay, Apollo, Slack, and email to enable AI agents to execute multi-step GTM workflows such as prospecting, enrichment, CRM updates, and notifications.

Real-time email verification API with syntax, MX, disposable detection, role-based flags, quality score 0-100. Built for agent outreach pipelines with pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Enables B2B email discovery and contact enrichment via Snov.io, including domain email search, email profile lookup, and domain email count checks.

A production-style MCP server exposing six business tools (web search, database, CRM, email, calendar, analytics) to AI clients via a secure, authenticated interface, with mock mode and a reference agent client.

Connects a podcast-sponsorship database to AI assistants, allowing users to search for brands that sponsor podcasts and reveal buyer contacts by name and email.

A connector that surfaces ~50 tools from 10+ integrated business systems (CRM, finance, support) via MCP, enabling an AI assistant to securely query and operate on correlated office data.