Lists the mailboxes: ids, addresses and permitted operations. backend "graph" is Outlook (string ids; labels are categories); reauth_by: when the owner must sign in to Microsoft again (setup page); plan: the mailmcp plan and, near expiry, how to renew. protection: verification emails hidden from you.

Lists folders (Gmail: labels) with message and unseen counts. On Outlook path is an opaque id and name the hierarchy ("Projects/2026"); tools accept either as a folder.

Searches one account, or all with account="all". Gmail: query takes Gmail syntax (from:, newer_than:7d, has:attachment, label:); elsewhere full text plus the filters. Newest first, with uid + folder and header hints. Outlook: total counts returned results only; from is exact.

Returns headers, sanitized text body and the attachment list of one message. Body is truncated to the configured limit.

Lists the conversation of a message across folders (Gmail: All Mail; other IMAP: the folder, INBOX, Sent, Archive; Outlook: whole mailbox), oldest first. coverage says what was searched and if it was complete. A thread groups by conversation; it does not prove who replied to whom.

Downloads one attachment (max 2097152 bytes into the conversation; with save_to up to 26214400 bytes to disk). Text-like types and PDFs with a text layer are returned as text, others as embedded binary. Pass save_to with a directory inside policy.attachment_dirs to write the file to disk instead; the result names the path.

Saves a draft in the account's Drafts folder. Nothing is sent; the owner reviews and sends it (or asks you to send_draft). Attachments: mailbox attachments, files from upload_attachment/request_upload, or inline content. The preferred way to prepare replies.

Returns the signature mailmcp appends under replies: the newest message in "mailmcp-signature" (HTML, inline images) when the account uses it, else the plain-text signature from the token.

Stores the signature (HTML and/or text) as a message in the folder "mailmcp-signature". With a photo or logo the owner instead mails one to themselves and moves it there. Needs the mailbox signature enabled on the setup page and the draft capability.

Saves a reply to a message into Drafts, in the same thread: threading headers, "Re:" subject, recipients (sender, or all with reply_all) and the quoted original are set by the server. Use whenever the owner says "reply / write a draft" ("odpověz", "napiš koncept"). Nothing is sent.

Sends a reply to a message in the same thread (threading headers, "Re:" subject, recipients and the quoted original are set by the server). Only when the owner enabled sending AND every recipient matches send_allowlist; otherwise use reply_draft. Only when the owner says "send" ("pošli", "odešli").

Sends an email via SMTP, optionally with attachments (existing mailbox attachments, uploaded files, inline content). Only allowed when the owner enabled sending for the account AND every recipient matches send_allowlist. Otherwise use create_draft.

Sends a draft exactly as stored in the Drafts folder (including its attachments); it leaves Drafts (on Outlook it moves to Sent). Recipients are taken from the draft and must match send_allowlist.

Forwards a message with all its attachments, without the files passing through the chat; the comment goes above it. Recipients must match send_allowlist; with as_draft the forward is saved to Drafts instead.

Stores a file (text, or base64 for binary; up to policy.max_upload_bytes) in "mailmcp-uploads" and returns {folder, uid, part} to attach; it is removed once attached. Large or local files: request_upload.

Returns a one-hour HTTPS upload link: PUT/POST a file to it (curl -T file , or open it in a browser); the file lands in "mailmcp-uploads" and appears in list_uploads. Anyone with the link can upload. Upload it yourself if you can run commands; otherwise give the link to the user.

Files waiting in "mailmcp-uploads" of an account (from upload_attachment or an upload link), newest first, with the {folder, uid, part} needed to attach them.

Mark read/unread, star/unstar, add/remove labels (Gmail labels, Outlook categories), move to a folder or archive. A move can change the id of the message: when the result carries moved_uid, use that id from then on.

Moves a message to the Trash folder. Never deletes permanently.

Searches every readable mailbox with one query; returns documents for fetch. Gmail syntax on Gmail (from:, newer_than:7d, has:attachment), plain words elsewhere; prefix "account: " for one mailbox. Outlook: Inbox only; Gmail: All Mail; search_messages with a folder looks elsewhere.

Returns the full sanitized text of one email by the id returned from search.

Sorts recent mail into reply_candidates, waiting_on, newsletter, lists, calendar, automated and other from headers only (no bodies). Items carry reasons; you and the owner decide what needs a reply. Reports coverage per account. Needs read; every plan.

Lists threads where the owner wrote last: their newest message is older than older_than_days and no reply from someone else was found. Each item says whether the scan proved no reply (no_reply_found) or not (unknown). Needs read; every plan.

Read-only summary for scheduled runs: reply candidates, calendar, lists, automated mail, threads waiting on others, follow-ups and snoozes due since the cursor. Pass the returned cursor back next time; without one it covers 24 hours. Reports coverage per account. Needs read; every plan.

Selects the exact messages a bulk action would act on (explicit uids or criteria, oldest first) and returns a count, senders, a sample and a confirm ref for bulk_apply. Changes nothing. Show the preview to the owner. Needs read and modify (trash: delete); 50 per call on Free, 500 paid.

Applies exactly the batch a bulk_preview sealed (fewer if some changed; never more), after the owner agreed. Never deletes permanently; a repeated confirm changes nothing. Needs read and modify (trash: delete); 50 per call on Free, 500 paid.

Marks a message to come back to by a date: a record in "mailmcp-state" plus a star or flag. It resurfaces when list_followups or a scheduled task runs; clear=true removes it. Needs read and modify; setting is paid, clearing free.

Shows due follow-ups (optionally later ones) and snoozed messages across one or all mailboxes, including flags set in Outlook itself. Read-only; reports what it could not cover. Needs read; every plan.

Moves one message (not its thread) to "mailmcp-snoozed" until a time, noting its origin; wake_snoozed or cancel=true brings it back. Needs read and modify; paid (cancel free).

Moves due messages from "mailmcp-snoozed" back where they were, unread. Safe to repeat and to run concurrently. orphans=true moves snoozed mail without a record to INBOX (only when the owner asks). Needs read and modify; every plan.

Reads unsubscribe headers. The dry run (default) says if mailmcp can send an RFC 8058 one-click POST: only if your provider verified the signer's DKIM on them and the link is on its domain; else the manual link. Only when the owner asks. Needs read (execute: unsubscribe); every plan.

Saves a text template, or with kind=profile a style profile (tone only), in "mailmcp-templates"; delete=true moves one mailmcp saved to Trash. Needs draft; templates are paid, profiles and deleting free.

Lists templates in "mailmcp-templates", or one in full by name. samples=true returns the style profile and samples of the owner's sent mail, for tone, length and language only. Needs read; every plan.