Microsoft Outlook MCP Server gives AI agents full control over Outlook email and calendar workflows, including reading and sending emails, managing attachments, organizing mail, scheduling and updating meetings, managing contacts, and creating tasks.
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Encrypted at rest, isolated from the model
Resolved from an AES-256-GCM vault at the moment of the call and attached to the request — the model never sees the secrets.
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Gets the signed-in user's own profile, returning properties such as displayName, mail, jobTitle, userPrincipalName, and id from the default property set unless `select` narrows it. Only works with a delegated, signed-in-user token — it returns the caller's own profile, not an arbitrary user's.
Creates a draft of a new message and saves it to the Drafts folder without sending it. Returns the created draft, including the `id` needed to send it later with send_draft_message.
Creates a draft Forward message for an existing message, which can be edited and sent later with send_draft_message. Specify recipients via either the top-level `toRecipients` or `message.toRecipients` (exactly one, not both and not neither), and a lead-in note via either `comment` or `message.body` (not both). Returns the created draft.
Creates a draft Reply All message for an existing message, addressed to the sender and all original recipients, which can be edited and sent later with send_draft_message. Specify a lead-in note via either `comment` or `message.body`, not both. Returns the created draft.
Creates a draft Reply message for an existing message, addressed to the sender, which can be edited and sent later with send_draft_message. Specify a lead-in note via either `comment` or `message.body`, not both; use `message.toRecipients` to add recipients beyond the original sender. Returns the created draft.
Forwards an existing message to the given recipients in a single call and saves the forward to Sent Items. Requires at least one recipient in `toRecipients`; use create_draft_to_forward_message instead if the forward needs editing before it's sent. Returns no content on success (202 Accepted).
Retrieves the full properties of a single message by its id, including sender, recipients, body, and read/draft/attachment flags. Use `select` to request only specific properties.
Lists messages in the signed-in user's mailbox, including the Deleted Items and Clutter folders, with optional OData filtering, sorting, searching, and paging. Returns a page of up to `top` messages; follow the response's `odata_next_link` to page through further results instead of setting `skip` manually.
Replies to the sender and all recipients of an existing message in a single call and saves the reply to Sent Items. Use create_draft_to_reply_all instead if the reply needs editing before it's sent. Returns no content on success (202 Accepted).
Replies to the sender of an existing message in a single call and saves the reply to Sent Items. Use `message` to override properties such as adding extra `toRecipients`, and use create_draft_to_reply instead if the reply needs editing before it's sent. Returns no content on success (202 Accepted).
Sends a previously created draft message by its id and saves it to Sent Items. The draft must come from create_draft_message, create_draft_to_reply, create_draft_to_reply_all, or create_draft_to_forward_message. Returns no content on success (202 Accepted).
Composes and sends a new message in a single call without creating a draft first, saving it to Sent Items unless `saveToSentItems` is set to false. `message` must be a full message resource, e.g. subject, body, toRecipients, ccRecipients, attachments. Returns no content on success (202 Accepted).
Outlook MCP Server is open source. Tell the MewCP maintainers.
One endpoint, the same key, whichever client you use.
~/Library/Application Support/Claude/claude_desktop_config.json (Mac) · %APPDATA%\Claude\claude_desktop_config.json (Windows)
Replace API_KEY with your own key.
Already have an "mcpServers" section in your config? Just add the server entry inside it.
Discovery, routing, credentials, tool scoping and execution logs all happen at the gateway→connections stay ACTIVE with no work from you
Outlook runs through a gateway that holds the credentials, scopes the access and records every call.
Managed auth, hosted MCP servers, and every Gmail tool your agent needs.
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