"Querying Elasticsearch (ES)" matching MCP connectors:

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.

Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox. $99/mo.

AI-powered virtual assistant that connects to Gmail, Outlook, Slack, Salesforce, HubSpot, Google Calendar, DocuSign, QuickBooks, and 20+ other services. Manage your entire professional life through a single Claude conversation — email, calendar, CRM, documents, travel, expenses, and more.

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/

Disposable inboxes for AI agents: create, wait for delivery, and extract email content or links.