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Unified Inbox
See all the emails from different accounts in one place. Users can select which accounts must be included in All Inboxes and set individual color labels for them.
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Professional support
We're always here to help you quickly resolve issues and keep things up to date.
Guaranteed responses and prompt bug fixes for your peace of mind.
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Plugin framework and API for seamless integration
A set of developer tools lets you extend the application in many ways, including user interface adjustments, Single-Sign-On, and more.
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Mobile sync for Mail, Contacts, and Calendar
Let your users keep their data in sync with IMAP, CardDAV and CalDAV support. iPhone and iPad can get sync settings automatically.
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Mobile layout
Besides mobile apps, there is another option to work with e-mail on smartphones - a web UI optimized for small screens and touch input.
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OpenPGP
Encrypt, sign, decrypt and verify e-mails right in the browser. All the crypto takes place directly in the browser, neither PGP keys nor decrypted data are sent to the server.
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Paranoid Encryption
A strong AES-256 browser-based encryption in Files module. When enabled, encryption process occurs right in the browser, the server never has access to unencrypted data or encryption keys.
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Create shareable links
You can share your encrypted files with others using their public keys. Normal non-encrypted files can be shared with a direct link, optionally password-protected.