What is deskmail-ai?

DeskMail AI is a desktop email application for Windows that runs entirely on your own computer and includes a built in connection to Claude, Anthropic's AI assistant. Mail is fetched from your own mail server using standard IMAP and SMTP and stored in a local database on your PC, and your password is encrypted using Windows itself. Nothing is sent anywhere except your own mail server and, only if you choose to connect it, your own copy of Claude Desktop. As an email client on its own, it supports full folder syncing, instant push for new mail, labels, snoozing messages, follow up reminders, filter rules, a junk mail filter that learns over time, rich text composing with attachments and signatures, scheduled sending, an address book, a calendar, contacts, search, and backup and restore. The standout feature is how it connects to Claude Desktop, the separate Claude application, through a local server running on the same PC. Once connected, Claude can read, search, and summarise your mail, draft replies for you to review before sending, organise messages by moving, labeling, archiving, flagging, or snoozing them, set up filter rules, turn emails into tasks or calendar events, look up contacts, and even help set up a new mail account by filling in the form. Claude can never send mail on your behalf, permanently delete anything, read your password, or change your account settings, and any draft it writes waits for you to send it yourself. Someone who does not want to write code can simply download a Windows installer from the project's Releases page and run it. Developers who want to run it from source need Windows 10 or 11, Node.js version 20 or later, and Git, then clone the repository and run standard npm commands to install and launch it. The project is released under the Apache 2.0 license, which allows free use, modification, and sharing as long as the copyright notice stays attached.