kerio client

Enterprise multi-network instant messaging client.

A lightweight local network chat client.

jafoClient is a client for the Uptimes Project. It reports uptime statistics.

Fully featured high fidelity voice email client. Completely free.

Koma-Mail is an email client which is very comfortable+has many useful functions

Yet another IM client.

Sylpheed is an email client and news reader based on GTK+ GUI toolkit.

Sylpheed is an email client and news reader based on GTK+ GUI toolkit.

MySonye - Sony Ericsson On-line Driver Client.

functional, easy-operate online/client calender with real-time sync.