Mailbox alternatives
24 email MCP servers from other publishers do the same job as Mailbox. The closest match comes first, then the best rated, with at most two per publisher.
Never-stored live email: read, send, organize, schedule and auto-triage Gmail or any IMAP mailbox.
No reviews yetgateway-ready631/wkFreeRead, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.
No reviews yetlocal · npm6394/wkFreeUnified MCP server for Email, Calendar & Contacts (Google, M365, Zoho, IMAP/SMTP, DAV).
No reviews yetlocal · npm368/wkFreePrivate, EU-hosted email for AI agents over JMAP: read, search, reply, organize, send.
No reviews yetgateway-ready60/wkFreeRead-only, self-hosted MCP access to IMAP email, mirrored locally and indexed by notmuch.
No reviews yetlocal · oci15FreeFree transactional email + SMTP relay. Agents self-signup, no API key needed to start.
No reviews yetgateway-ready1FreeProduction IMAP & SMTP for Claude: multi-account email search, triage, send, and spam checks.
No reviews yetlocal · mcpbFreeCompany email for Rwanda. Read and send mail from a Shaka mailbox over OAuth or an API key.
No reviews yetgateway-readyFreeRead, send, file and search email in any Gmail, Microsoft 365 or IMAP mailbox, plus its calendar.
No reviews yetgateway-readyFreeMicrosoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.
No reviews yetlocal · npm37328/wkFreeEmail infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.
No reviews yetgateway-ready628/wkFreeLocal email connectivity for AI agents — read, draft, send, and organize Outlook mail via MCP
No reviews yetlocal · npm6107/wkFreeEmail verification for AI agents: send, hold or kill with the reason. Signup and credits by API.
No reviews yetlocal · npm2427/wkFreeSend email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.
No reviews yetgateway-ready149/wkFreeQuery SES send history, delivery events, domains and suppressions, and send from your AWS account.
No reviews yetlocal · npm1264/wkFreeUnlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.
No reviews yetlocal · npm44FreeEmail infrastructure for AI agents: send, authenticate domains, track delivery, diagnose issues.
No reviews yetlocal · npm73/wkFreeSend and receive across email, SMS, WhatsApp, and voice. One API, one contract.
No reviews yetgateway-ready1FreeMCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
No reviews yetlocal · mixed44/wkFreeUnified messaging MCP server: WhatsApp, Instagram, Telegram, SMS, Messenger & email support inbox
No reviews yetgateway-readyFreeSend email and newsletters with Mailtea over MCP, plus skills for email and website design.
No reviews yetgateway-readyFreeEmail for agents: domains, aliases, IMAP mailboxes, DNS, sending and webhooks via one API key.
No reviews yetgateway-readyFreeMCP server for Siglio. Lets an AI assistant send documents for e-signature by email or text.
No reviews yetlocal · npm684/wkFreeSend and manage email via the SendHustle API — emails, domains, contacts, audiences, campaigns.
No reviews yetlocal · npm33/wkFree
