Tau Mail

What Tau Mail is

Tau Mail is an email service with webmail and native Android and iOS apps. Its site says messages are encrypted on the device before they leave, with keys held only by the sender and recipient. It also advertises zero tracking and says it does not scan inboxes to build advertising profiles. Spam detection and priority sorting are described as running on-device without uploading message content. Users can bring a custom domain with full DNS control, and webmail uses the same login as the mobile apps without requiring installation. The mobile apps include inbox sync, calendar, and contacts. The Android beta listing includes push notifications and sync with webmail; the iOS beta listing says remote push works while the app is open, with full background push available after APNs is configured. The free plan includes 1 GB encrypted storage and one custom alias. Pro costs $8 a month and includes 50 GB, five custom domains, priority routing, and advanced filters. Business costs $16 a month and adds unlimited storage, a team admin console, audit trail exports, and dedicated support.