Open Mailbox - Open-source email, without the middleman.
Open Mailbox is a free, open-source email client for iOS and Android. Manage all your email accounts in one place, with a modern interface, offline access, and no intermediary server.
All your emails in one place
- Unified inbox across multiple accounts
- Supports Gmail, Yahoo, OVHcloud, IONOS, and other IMAP/SMTP providers
- Smart inbox categories: Primary, Transactions, Updates, and Promotions
- Full-text search across your mailboxes
Fast and intuitive
- Read and search emails offline
- Swipe gestures and quick actions
- Instant changes with background synchronization
- Light and dark modes
- Attachment support and contact suggestions
Privacy by design
- Direct connection to your email provider, without an intermediary server
- No additional account required
- Emails stored locally on your device
- Remote images blocked by default
100% open source
Open Mailbox is distributed under the Mozilla Public License 2.0. Its source code is publicly available for anyone to inspect and contribute to.
An existing email account is required.
Open-source email client. All your inboxes, no intermediary server.