Email Webmail

If you want a webmail interface to run on top of a Postfix mail server, you have several open-source and self-hosted options. Here are the most popular and well-supported choices:

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1. Roundcube

• Description: Roundcube is a modern, browser-based IMAP webmail client with a user-friendly interface. It supports plugins, themes, and is highly customizable.
• Features:
  • Full IMAP support
  • Address book, folder management, and rich text editing
  • Plugin system for additional features (e.g., calendars, spell check)
  • Works seamlessly with Postfix + Dovecot (for IMAP/POP3)
• Setup: Requires a web server (Apache/Nginx), PHP, and a database (MySQL/PostgreSQL/SQLite).
• Website: roundcube.net

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2. RainLoop

• Description: RainLoop is a lightweight, fast, and simple webmail client with a modern UI.
• Features:
  • Minimalist design, easy to install and configure
  • Supports IMAP and SMTP
  • No database required (uses file-based storage)
  • Works well with Postfix + Dovecot
• Setup: Requires a web server (Apache/Nginx) and PHP.
• Website: rainloop.net

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3. SquirrelMail

• Description: SquirrelMail is a classic, lightweight webmail client written in PHP. It’s less modern but very stable and resource-efficient.
• Features:
  • IMAP support
  • No database required
  • Simple and functional
• Setup: Requires a web server and PHP.
• Website: squirrelmail.org

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4. SOGo

• Description: SOGo is a groupware server with a webmail interface, calendaring, and contacts. It’s more feature-rich but requires more setup.
• Features:
  • Webmail, calendar, and address book
  • Supports IMAP, CalDAV, and CardDAV
  • Works with Postfix + Dovecot
• Setup: Requires a web server, database, and more complex configuration.
• Website: sogo.nu

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5. Horde

• Description: Horde is a full-featured webmail and groupware suite with a modular design.
• Features:
  • Webmail, calendar, tasks, and notes
  • IMAP support
  • Extensible with plugins
• Setup: Requires a web server, PHP, and a database.
• Website: horde.org

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Which One Should You Choose?

• For simplicity and speed: RainLoop or Roundcube.
• For a classic, lightweight option: SquirrelMail.
• For groupware features (calendar, contacts): SOGo or Horde.

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Setup Overview

1. Install Postfix (for SMTP) and Dovecot (for IMAP/POP3).
2. Install your chosen webmail interface (e.g., Roundcube or RainLoop).
3. Configure the webmail client to connect to Dovecot (IMAP) and Postfix (SMTP).
4. Set up a web server (Apache/Nginx) to serve the webmail interface.

Would you like a step-by-step guide for setting up one of these with Postfix?