"Using the Linear App" matching MCP connectors:

Emailable MCP — wraps the Emailable email verification API (emailable.com)

Hunter.io MCP — wraps the Hunter.io email finder & verification API (hunter.io)

Klaviyo MCP Pack — wraps the Klaviyo API for email marketing

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

Cloudflare Workers MCP server: email-validator

Send transactional emails for AI agents via SMTP. Templates included.

Send transactional pdfs for AI agents via SMTP. Templates included.

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

Verify emails — deliverability, disposable/role/free detection, MX validity, domain age.

Your AI agent just got a marketing team. SendPulse MCP Server provides full access to the SendPulse marketing platform — email campaigns, CRM, chatbots, SMTP, and online courses. 134 methods across 5 modules.

Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.

Webinar analytics for Zoom Meeting-based webinars: Funnels, transcripts, email engagement

Permissioned access to Outlook, OneDrive and Teams via the user's own Microsoft account

Permissioned access to Gmail, Drive and Calendar via the user's own Google account

Read, organise and send from your existing email accounts. Nothing sends without your approval.

AI email inbox and sending tools with attachments, search, live events, and webhooks.

Manage Microsoft 365 email, calendar, contacts and inbox rules via the Graph API with OAuth 2.0.

Email inbox API for AI agents: read, search, draft, send, and triage mail over Streamable HTTP.

Create and manage Templated email templates from any MCP client - bring your own model.

MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/