Keywords: mail, email, web, script, application, webmail, web interface, web-based mail, ajax, imap, imap4, smtp, ssl, server, client, php, linux, ldap, contacts, address book, calendar, html, skin, mysql, utf-8, ical, mobile sync, caldav, carddav, plesk, cpanel

Premium-class webmail front-end for your existing IMAP mail server, written in PHP. Fast and clean interface with desktop and mobile layout makes it easy to access mail, calendars, contacts, Files storage and other data.

Users can check and send mail, see emails organized in threads, use Inbox, Sent, Drafts and other folders, create new folders, set Sieve mail filters, signatures, identities, and other options.

E-mail composer supports drag-n-drop of images and attachments from desktop.

Mail viewer correctly and safely displays HTML messages (blocking javascript and external images) and fully supports international charsets and UTF-8. Arabic and Hebrew users can choose RTL (right-to-left rendering). Attachments can be downloaded with drag-n-drop, images and PDFs are previewed with thumbnails. Users can open zip and winmail.dat attachments, or download all attachments with a single click.

Address Book can store contacts and groups (local db or LDAP server), and expose them as CardDAV server for mobile sync.

Calendar module lets users schedule events and synchronize with mobile devices via CalDAV.

iOS profiles support lets CalDAV/CardDAV/IMAP settings be delivered automatically right onto the devices like iPhone and iPad.

Users can have their own settings, including time format and interface language (supports English and many others, easy to add new ones).

WebMail Pro supports IMAP quotas, multiple accounts per user (even on different mail servers) and multiple domains. Database backend is MySQL.

WebMail Pro is shipped with the source code (customization allowed) and feature-rich API.

The user interface is built with templates making it easy to develop new themes.

The web-based administration panel, web installer and cPanel/Plesk/Bitnami integration make it easy to install and configure WebMail Pro. Ready to use by ISPs and hosting providers.