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Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
MCP endpoint :https://ai.agentemaillist.com/mcp · website · measurements and detailsLetterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
MCP endpoint :https://mcp.apify.com?tools=cybermax/send-email · website · measurements and detailsLetterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
MCP endpoint :https://mcp.apify.com/?tools=cybermax/send-email · website · measurements and detailsMulti-account IMAP/SMTP email server with 22 tools for reading, sending, searching, and organizing.
Package oci :ghcr.io/boutquin/mcp-server-email:latest · website · measurements and detailsEmail IMAP/SMTP MCP server: iCloud, Gmail, Yahoo, Outlook, and custom IMAP providers
Package npm :@mindstone/mcp-server-email-imap · website · measurements and detailsMCP tools for agents: web research, content extraction, email, DNS, and blockchain intelligence.
MCP endpoint :https://relay.straelo.com/mcp/ · measurements and detailsDMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
MCP endpoint :https://arc-relay.com/mcp · website · measurements and detailsAI agents discover, complete, submit and independently verify free, bounded public-good tasks.
MCP endpoint :https://opentaskrelay.org/api/mcp · website · measurements and detailsFree agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.
MCP endpoint :https://axiomrelay.io/mcp/discovery · website · measurements and detailsCheck SPF/DKIM/DMARC/BIMI, blacklists, SMTP/IMAP; DNS lookups; generate email DNS records.
MCP endpoint :https://themailx.com/mcp · website · measurements and detailsVerify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.
MCP endpoint :https://checkmails.eu/api/mcp · website · measurements and detailsCleans an email list from an Apify dataset, a CSV/Excel file or Google Sheet, keeping every...
MCP endpoint :https://mcp.apify.com/?tools=nerolabs/email-list-cleaner · website · measurements and detailsSend transactional emails for AI agents via SMTP. Templates included.
MCP endpoint :https://mifactory-email.vercel.app/mcp · website · measurements and detailsFind and verify B2B work emails and enrich contacts — live SMTP verification.
MCP endpoint :https://mcp.leadmagic.io/mcp · website · measurements and detailsA free SMTP relay that still takes a username and password, for devices that cannot do OAuth 2.0.
Package npm :zerosmtp-mcp · website · measurements and detailsMCP server for Aruba email and calendar via IMAP/SMTP/CalDAV
Package pypi :mcp-aruba · website · measurements and detailsPrivacy-focused email: domains, DNS verification, aliases, SMTP sending, mailboxes and calendars.
Package npm :@forwardemail/mcp-server · website · measurements and detailsEmail tools for any IMAP/SMTP provider: list, read, search, send, and manage messages.
Package npm :@aiwerk/mcp-server-imap · website · measurements and detailsSelf-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.
Package oci :docker.io/psyb0t/mailbox:v0.4.15 · website · measurements and detailsCloud file relay: chunked uploads, folders, share links, inline text reads, ZIP packing.
MCP endpoint :https://stagenth.com/mcp/file-relay/ · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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