Gmail + Microsoft 365 MCP

Every inbox, one agent-safe router.

MailMCP lets AI agents search, fetch threads, create drafts, and send with explicit approval across multiple Gmail and Microsoft 365 accounts.

Install alpha Join beta

6MCP tools

2providers wired

0hosted mail storage

Installable alpha

Runs as a local stdio MCP server. The hosted site never sees inbox contents or OAuth tokens.

Terminal

npm install -g https://github.com/claygeo/multi-mail-mcp/archive/refs/heads/main.tar.gz
mailmcp init
mailmcp add-gmail --alias personal --credentials-json "%USERPROFILE%\Downloads\client_secret_....json"
mailmcp add-m365 --alias work --client-id "<MICROSOFT_CLIENT_ID>" --tenant common
mailmcp verify --max-results 3
mailmcp server

What works now

The alpha is intentionally narrow so the trust model stays clean.

✓Multiple Gmail and M365 account aliases

✓Encrypted local token vault

✓Search, thread fetch, draft creation

✓Live verification command before MCP setup

✓Send requires explicit confirm: "SEND"

Private beta

Built for people with too many inboxes and agents doing real work.

Useful if you run work, personal, and side-project email accounts and want an agent to draft, search, and route without confusing identities.

The first beta is local-first. Hosted sync, team policy, and paid accounts come after the local trust model proves itself.