Read from your device
Downloaded messages open from the local cache. Reading a message doesn’t require another trip to a server.
Native email for
Mac and iPhone.
All your accounts. An Inbox with approved senders.
Rich text, keyboard shortcuts and mail stored on your device.
In development. Mac and iPhone builds; no public download yet.
Multiple accounts.
- Gmail
- Microsoft Outlook
- Yahoo
- iCloud Mail
- Fastmail
One Inbox across accounts, or switch to an individual account. Direct IMAP connections, with OAuth where supported. Live provider testing is in progress.
Native performanceLocal cache.
Local cache.
Background sync.
Sync in the background
The app watches for new mail over IMAP. Sync and optional on-device classification run separately from reading.
Native Mac and iPhone controls
Built with SwiftUI, AppKit and UIKit. Native text editing, keyboard commands, menus and separate compose windows on Mac.
Speed is a development priority. Large-mailbox performance testing is still ahead.
Features
Mail features.
Available in the development build unless noted below.
Screen new senders
Unfamiliar senders go to Screening, grouped by domain. Accept them, skip the Inbox or block them. Your choice applies to future messages.
Browse by sender
See a sender’s conversations, receipts, bookings and alerts together. Filter people and organisations, and merge domains belonging to the same organisation.
Organise with labels
Create nested labels, add descriptions and apply several labels to a message. Manage them in the sidebar. A message remains available under its sender.
Write with rich text
Fonts, lists, links, inline images and per-account signatures. Add attachments and open several compose windows at once on Mac.
Snooze, archive and flag
Move a conversation out of the Inbox, bring it back later or flag it for follow-up. Keep its history in Senders. Local actions can be undone.
Promotions and sign-in codes
Promotions appear as a subject and date. Hide a sender’s promotions while keeping their other mail. Codes stay with the sender. Codes with a known expiry move to Trash when they expire.
Use Apple Intelligence
Optional on-device summaries, classification and label suggestions. Automatic label creation is off by default. AI never decides whether to accept a sender.
Inspect the original
View full headers, export the original message and save attachments. Mac S/MIME tools use Apple Security and Keychain for signing and verification.
PrivacyMail goes directly
Mail goes directly
to your provider.
Messages, headers and attachments stay between the app and your email provider. Passwords and OAuth tokens are kept in Keychain. A planned optional IDLE watcher uses short-lived encrypted credential leases, described in our privacy policy.
Letterslot’s notification service handles wake-up signals. It does not download, store or forward your email. Apple Intelligence runs on your device.
Storage and privacy detailsDevelopment
See the current status Development build.
Live account testing, sending, provider-side filing, automatic iCloud sync and push delivery are active work. There’s no public release date yet.