T-dah is a free PHP webmail application which is built from the well-known Uebimiau script & offers a slick interface.
It can be up & running in a few minutes on any PHP (4 or 5) enabled server as no database is required.
The application uses the POP3 protocol & can be configured to use SMTP, PHP mail, Sendmail or Qmail for sending e-mails.
T-dah comes with several modules like:
  • event calendar
  • group chat
  • addressbook
  • folder management
It uses TinyMCE WYSIWYG editor for creating new e-mails, has an integrated search & can be translated into any language with the "language files" support.