Zerosmtp alternatives
10 email MCP servers from other publishers do the same job as Zerosmtp. The closest match comes first, then the best rated, with at most two per publisher.
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
No reviews yetgateway-ready1FreeRead, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.
No reviews yetlocal · npm6394/wkFreeOutlook integration with OAuth, message search, batch operations, and calendar management
No reviews yetlocal · npm2828/wkFreeGmail integration with OAuth authentication, message search, batch operations, and Sheets export
No reviews yetlocal · npm2466/wkFreeUnified MCP server for Email, Calendar & Contacts (Google, M365, Zoho, IMAP/SMTP, DAV).
No reviews yetlocal · npm368/wkFreeContact forms that actually arrive. No SPF/DKIM, no SMTP. AI sorts them and drafts the reply.
No reviews yetlocal · npm223/wkFreeMCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
No reviews yetlocal · mixed44/wkFreeYour mailboxes in ChatGPT and Claude: Gmail, iCloud, Fastmail, any IMAP. Passwords stay yours.
No reviews yetgateway-readyFreeSelf-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.
No reviews yetlocal · oci4FreeProduction IMAP & SMTP for Claude: multi-account email search, triage, send, and spam checks.
No reviews yetlocal · mcpbFree
