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.
Email MCP server for AI agents: IMAP/SMTP, Gmail, Outlook, calendar, ManageSieve, AI triage, OAuth2.
5.0(1)local · npm1.3k/wkFreeSearch Gmail and Outlook, save drafts, manage email rules, and view email stats.
No reviews yetgateway-ready12kFreeGive AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven
No reviews yetlocal · npm1921.8k/wkFreeIMAP/SMTP email MCP server — 52 tools, stdio + HTTP, IMAP IDLE push, multi-account, AI triage.
No reviews yetlocal · npm1171.2k/wkFreeIMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants
No reviews yetlocal · npm96528/wkFreeUnified email MCP server for Gmail, Outlook, iCloud, and IMAP with batch operations
No reviews yetlocal · npm22509/wkFreeRead, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.
No reviews yetlocal · npm7635/wkFreeNever-stored live email: read, send and triage Gmail, Outlook / Microsoft 365, or any IMAP mailbox.
No reviews yetgateway-ready1027/wkFreeAllow AI systems to read, send, archive, and manage emails via Gmail.
No reviews yetlocal · npm11210/wkFreeLocal email connectivity for AI agents — read, draft, send, and organize Outlook mail via MCP
No reviews yetlocal · npm6335/wkFreeUnofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP
No reviews yetlocal · npm6113/wkFreeCopy AI-generated content to the macOS clipboard: rich Gmail-ready email drafts, text, and files
No reviews yetlocal · mcpb251FreeEmail MCP server for Gmail, Outlook and any IMAP mailbox, hardened against prompt injection
No reviews yetlocal · npm4143/wkFreePush, email, SMS, in-app and journeys. 54 tools: reads and drafts; only test sends.
No reviews yetgateway-ready192/wkFreeManage multiple Gmail accounts in Claude Desktop — search, send, reply, draft, and organize.
No reviews yetlocal · npm1975/wkFreeIMAP/SMTP email for iCloud, Gmail, Proton Bridge and more: search, read, follow threads, send.
No reviews yetlocal · mixed183/wkFreeMulti-account Gmail MCP server — read, search, draft, and label across every inbox.
No reviews yetlocal · pypi348/wkFreeRender markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
No reviews yetgateway-ready1.4k4.6k/wkFreeProgrammable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
No reviews yetgateway-ready267585/wkFreeMicrosoft Outlook personal accounts: mail, rules, calendar, contacts, to-do, drafts (77 tools).
No reviews yetlocal · pypi371.3k/wkFreeReal email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.
No reviews yetlocal · npm229182/wkFreeMicrosoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.
No reviews yetlocal · npm39500/wkFreeMCP server for Gmail with OAuth2 (personal) and service account (Workspace) support.
No reviews yetlocal · npm81148/wkFreeUnlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.
No reviews yetlocal · npm48285/wkFree
Mailbox alternatives by what you need
Open source Mailbox alternatives (22)
Published under an open licence such as MIT or Apache-2.0.
Mailoo - Email MCP Server, Google Workspace, Email, Imap, Email, MCPEmails, Gmail, Agent Email and 14 more below.
Hosted Mailbox alternatives (5)
Nothing to install: a remote endpoint you add by URL. Also callable through the mcp.market gateway.
Local Mailbox alternatives (19)
A package you install and run on your own machine, so your data stays on your computer.
Mailoo - Email MCP Server, Google Workspace, Email, Imap, Email, Fluxmail, Gmail, Agent Email and 11 more below.
Safest Mailbox alternatives (15)
Graded A: passed every check the scanner runs on the latest release.
Mailoo - Email MCP Server, Inbox Zero, Google Workspace, Imap, Email, MCPEmails, Agent Email, Pushizo and 7 more below.
Mailbox and its alternatives compared
| Server | Grade | Rating | Licence | Runs | Stars |
|---|---|---|---|---|---|
| Mailbox(this one) | B83 | No reviews yet | MIT | Local | 7 |
| Mailoo - Email MCP Server | A85 | 5.0 (1) | LGPL-3.0 | Local | 0 |
| Inbox Zero | A97 | No reviews yet | NOASSERTION | Hosted | 12k |
| Google Workspace | A92 | No reviews yet | Apache-2.0 | Local | 192 |
| B74 | No reviews yet | LGPL-3.0 | Local | 117 | |
| Imap | A92 | No reviews yet | MIT | Local | 96 |
| A85 | No reviews yet | MIT | Local | 22 | |
| Fluxmail | B82 | No reviews yet | NOASSERTION | Local | 7 |
| MCPEmails | A98 | No reviews yet | AGPL-3.0 | Hosted | 10 |
| Gmail | B83 | No reviews yet | MIT | Local | 11 |
| Agent Email | A94 | No reviews yet | Apache-2.0 | Local | 6 |
| Proton Mail (unofficial) | B83 | No reviews yet | MIT | Local | 6 |
| Clippy | B80 | No reviews yet | MIT | Local | 251 |
| pylos-mcp | B83 | No reviews yet | MIT | Local | 4 |
| Pushizo | A99 | No reviews yet | MIT | Hosted | 0 |
| Multi Gmail | B78 | No reviews yet | MIT | Local | 19 |
| owlpost | A92 | No reviews yet | MIT | Local | 1 |
| Multi-Account Gmail | A92 | No reviews yet | MIT | Local | 3 |
| emailmd | A93 | No reviews yet | MIT | Hosted | 1.4k |
| Atomic Mail | A93 | No reviews yet | MIT | Hosted | 267 |
| Outlook MCP | A89 | No reviews yet | MIT | Local | 37 |
| Agenticmail | B82 | No reviews yet | MIT | Local | 229 |
| Outlook Assistant | A85 | No reviews yet | MIT | Local | 39 |
| Gmail | A85 | No reviews yet | MIT | Local | 81 |
| Openagentemail | B74 | No reviews yet | Apache-2.0 | Local | 48 |