About Smtp MCP
Smtp MCP is an MCP server in the Communication category: a Go MCP server for previewing and sending email over SMTP. Stdio transport, verified TLS, and sending disabled by default.
Install
From source
git clone https://github.com/fabienbutz/smtp-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (9)
email_deleteDelete an email. Moves to Trash by default, or permanently deletes if permanent=true.
Parameters not published.
email_foldersList all email folders/mailboxes (e.g. INBOX, Sent, Trash, Drafts).
Parameters not published.
email_listList recent emails in a folder. Returns newest first with UID, date, sender, subject, and read status.
Parameters not published.
email_moveMove an email to another folder.
Parameters not published.
email_readRead a specific email by UID. Returns headers, text body, and attachment list. Use email_list first to get UIDs.
Parameters not published.
email_replyReply to an email. Reads the original via IMAP, then sends the reply via SMTP with proper headers (In-Reply-To, References, Re: subject).
Parameters not published.
email_searchSearch emails by sender, subject, body text, date range, or read status. Returns matching UIDs with summary.
Parameters not published.
email_sendSend an email via SMTP. Supports text and HTML body, CC, BCC, reply-to, and file attachments (via URL or base64 only).
Parameters not published.
email_verifyTest the SMTP connection. Returns success if credentials and server are working.
Parameters not published.
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