from Michael Reber

Roundcube - Open source webmail solution


Roundcube is an open source webmail solution with a desktop-like user interface that is easy to manage and runs on a standard LAMPP server. The skins use the latest web standards to create a functional and customised user interface.

Centralised webmail administration instead of a traditional Outlook installation for each employee notebook

The Roundcube user interface

Below you can see some screenshots of Roundcube in use. Additional skins are available via Packagist. We can also create your own skin or extend an existing skin to make Roundcube look exactly the way you want it.

  • Drag & drop message management
  • Full support for MIME and HTML messages
  • Multiple sender identities
  • Fully functional address book with groups and LDAP connections
  • Listing of messages in a thread
  • Support for IDNA and SMTP, UTF8
  • Spell check
  • Templates for ready-made answers
  • IMAP folder management - Shared/global IMAP folders
  • Support for external SMTP servers
  • Support for access control lists (ACL)
  • Integrated caching for fast mailbox access
  • Unlimited number of users and messages
  • Import/export functions
  • Plug-in API for flexible extensions
  • Three-column view
  • Responsive skin (multi-device support)
  • Light and dark surface modes
  • Preview for attachments
  • Integration of the address book with search function
  • Browse messages and contacts
  • Enhanced privacy protection
  • Protection against brute force attacks during login
  • Protection against XSS attacks
  • Support for PGP encryption
  • Support for OAuth/XOauth login

Server requirements

  • Apache, Lighttpd, Nginx, IIS, Cherokee or Hiawatha web server
  • PHP version 7.3 or higher1
  • MySQL/MariaDB, PostgreSQL, SQLite, MSSQL or Oracle database
  • SMTP server and IMAP server with IMAP4 rev1 support
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Michael Reber

Years of experience in Linux, security, SIEM and private cloud

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