Functionality

SMTP/ESMTP server
POP3 server
IMAP server
Mobile sync
POP3/IMAP authentication via LDAP
Built-in WebMail Pro client
Web admin panel
Multiple domains and mailboxes
Mailing lists
Auto-responder (vacation message)
Logging

Security

SMTP authentication (SASL and POP-before-SMTP)
SSL/TLS connections
Spam filter integration
Anti-virus integration
WebMail can block javascript and – external images in e-mails
Admin can enforce various restrictions – for users


Deployment and Configuration

Web administration panel

Source code provided for most – components

Easily customizable, skin-based interface style of webmail, can be translated to other languages

Compatibility

Webmail and web admin can run on PHP
Provides SMTP/POP3/IMAP protocols
MySQL database backend
Webmail supports AJAX in all modern browsers: IE6+, Firefox, Chrome, Safari, Opera


Webmail Features

Message preview pane
New (three pane view) main window layout
Auto-complete of e-mail addresses
Keyboard shortcuts
Spell-check
Compose e-mails in HTML (WYSIWYG) or plain-text modes
Right-to-left (RTL) rendering for Arabic and Hebrew
Built-in and user-defined skins
Personal user settings
Meeting requests and reminders in Calendar
Meeting requests and reminders in Calendar
LDAP authentication
and address book access

Webmail interface available in:

English
Arabic
Chinese Simplified
Chinese Traditional
Danish
Dutch
French
German
Greek
Hebrew
Hungarian
Italian
Japanese
Norwegian
Polish
Portuguese-Brazil
Russian
Spanish
Swedish
Thai
Turkish
Ukrainian