Lumen Mail: AI Email

Walk in: morning briefing is ready. Replies are drafted in the sender's language. Speak to archive clutter. Direct to 6 inboxes or your IMAP. Passwords stay in Keychain.

Lumen Mail is a private inbox secretary. You open it and the morning briefing is already done.

No account to create, and no ads. Mail travels from this device straight to your provider. Passwords stay in the system Keychain. Cloud AI Secretary stays off until you turn it on.

The secretary desk:

• The briefing holds newsletters back, pulls verification codes forward, and sets aside letters that need a decision, each with a reply already drafted.
• A code in the briefing or on the row copies with one tap, and that row is marked read.
• A letter from a person opens with a draft in that letter's language. Send it, edit it, or switch among three tones: agree, reschedule, or follow up.
• Long letters and bills become a three-line card: what it is, the amount or the date, and what to do next.
• Say or type one line to archive newsletters, mark mail read, or ask for a deposit and its due date. Archive and mark-read can be undone.

The mailbox:

• iCloud, Gmail, QQ Mail, NetEase (163, 126, yeah.net, and 188), Fastmail, and Yahoo are built in. Any other domain uses the IMAP and SMTP servers you enter.
• Attachments download when you tap them and open in QuickLook. On Mac you can also save them. Signing out of an account removes it from the Keychain and deletes that mailbox's local cache.
• Translate on this device with Apple's Translation framework (iOS 18+ / macOS 15+). The message does not leave the device. Where the device supports it, the short summary stays on device too.
• Cloud AI Secretary is optional and off by default. A briefing polish, a three-line digest, a reply draft, or an inbox answer can go to DeepSeek through a stateless relay that does not store mail. Turn it off anytime in Settings. Mail itself still arrives over IMAP on this device.
• One app for iPhone, iPad, and Mac. New mail arrives while the app is open, without polling. The latest messages are fetched ahead of time, so a tap opens from the local cache.

What it doesn't do: No calendar, no to-dos, no team features, no recommendation feed, no tracking pixels of our own, no analytics SDKs. The cloud secretary does nothing until you turn it on.