find_unreplied_messages

MCP tool from MCP Mail Server by yunfeizhu

sender (required), mailboxes (optional, defaults to INBOX), since, before, and limit. Uses In-Reply-To and References; messages without Message-ID are returned as unknownMessages instead of being guessed from their subject.

How to use it

find_unreplied_messages is exposed by the MCP Mail Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the find_unreplied_messages tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

FULL MCP MAIL SERVER LISTING

Other tools in MCP Mail Server (11)

check_connection

Connects to IMAP when needed, actively verifies SMTP, and returns structured status

continue_email_thread

subject (string), recipient (string, optional narrowing match), since (string, optional), text (string, optional), html (string, optional), signature (object, optional), replyToAll (boolean, default: true), and includeOriginal (boolean, default: true). Finds the newest exact normalized subject in th

delete_message

mailbox (string), uid (number), uidValidity (number, optional). Verifies the UID exists and permanently deletes only that UID. If STORE or UID EXPUNGE reports an error, the tool verifies the source UID and rolls back \\Deleted when possible. A transport failure that cannot be confirmed returns a str

get_message

mailbox (string), uid (number), uidValidity (number, optional), markSeen (boolean, optional)

get_messages

mailbox (string), uids (array), uidValidity (number, optional), markSeen (boolean, optional). The call fails before fetching bodies if any requested UID is missing, and fails explicitly if the combined returned bodies exceed MAILMAXRESPONSECHARACTERS.

list_mailboxes

No parameters required

move_message

mailbox (string), uid (number), targetMailbox (string), uidValidity (number, optional). The source UID and target mailbox must already exist. Fails safely unless the server supports MOVE or UIDPLUS. When the server returns a destination UID, the result also refreshes destinationUidValidity so the ta

reply_to_email

mailbox (string), originalUid (number), uidValidity (number, optional), text (string, optional), html (string, optional), signature (object, optional: text and/or html), replyToAll (boolean, default: false), includeOriginal (boolean, default: true). At least one of text or html is required.

save_attachment

mailbox (string), uid (number), uidValidity (number, optional), savePath (string, absolute path), attachmentIndex (number, optional, 0-based), returnBase64 (boolean, optional, default: false). When saving multiple attachments, a later write failure returns isError: true, partial, savedFiles, and fai

search_messages

Combines mailboxes, from, to, subject, body, IMAP keywords, unread, inclusive since, exclusive before, limit, and includeBody. Omit mailboxes to search INBOX and the detected sent mailbox. Date/time searches widen the IMAP calendar-day query by two days on each side, then apply the exact instant loc

send_email

to (string), subject (string), text (string, optional), html (string, optional), signature (object, optional: text and/or html), cc (string, optional), bcc (string, optional), attachments (string[], optional, absolute file paths). At least one of text or html is required.