Draft: some verdicts here are not yet reviewed. Hidden from search engines.
Comparison · Updated
Gmail vs Outlook: MCP servers compared
Which one works better with Claude, ChatGPT and other AI assistants? Here is what each vendor publishes, side by side, from our dated verdicts.
The short answer
- Both Gmail and Outlook publish an official MCP server.
- Outlook documents more tools (9 vs 7 for Gmail).
- Safety flags to review: Gmail 1, Outlook 2. See each verdict for details.
Side by side
| Detail | Gmail | Outlook |
|---|---|---|
| Verdict | Official | Official |
| Claude connector | Yes | Yes |
| Server | Gmail connector / Gmail MCP server (Google) (Google) | Outlook Mail and Calendar MCP servers (Microsoft, legacy) (Microsoft) |
| How it runs | Hosted (remote URL) | Hosted (remote URL) |
| Sign-in | OAuth sign-in | OAuth sign-in |
| Stage | Preview | Preview |
| Plan needed | Claude Gmail connector: Pro, Max, Team and Enterprise (Team/Enterprise: an Owner enables it first). Using Google's server directly: Google Workspace Developer Preview Program membership, a Google Cloud project and your own OAuth client. | Work or school Microsoft 365 tenant with Agent 365 setup. |
| Documented tools | 7 (4 read, 3 write) | 9 (4 read, 5 write) |
| Can delete data | No documented delete tools | Yes, 2 tools |
| Safety flags | Google documents create_draft and label tools but no send tool. Anthropic's directory page lists 29 tools including send_message, reply, forward, trash_message and delete_label, while Claude's docs page says the connector is read-only and cannot send or modify email. These sources disagree; no read-only switch was verified. | Tools can send mail and delete messages or events. · Microsoft marks these legacy and says not to use them in production; use Work IQ MCP for new projects. |
| Setup guides | Claude | Other clients |
| Last checked | October 18, 2026 | October 18, 2026 |
Gmail verdict
As of October 2026, Gmail has an official Claude connector: Anthropic's directory lists it as made by Google, pointing at Google's remote Gmail MCP endpoint (gmailmcp.googleapis.com). Google labels that server a Developer Preview and documents search, read, draft and label tools. Claude's own docs describe the connector as read-only; the directory shows more tools, so verify.
Setup, tools and safety check for Gmail →Outlook verdict
As of October 2026, Claude reaches Outlook through Anthropic's Microsoft 365 connector, which needs a work or school account and admin consent; personal Outlook.com accounts are unsupported. Microsoft's own Outlook Mail and Calendar MCP servers exist but are marked legacy. Community servers cover personal accounts.
Setup, tools and safety check for Outlook →