It can also be accessed from many different clients, most notably Microsoft Outlook, Novell and Evolution (formerly Ximian).

The software was released by Scalix Corporation and founded by Julie Hanna in 2002, during her tenure as an Entrepreneur In Residence (EIR) at Mayfield Fund.

The code is based on the earlier HP OpenMail product, which was licensed from Hewlett-Packard.

A majority of customers were migrating away from legacy software like Microsoft Exchange and Lotus Notes.

[3] In July 2007, the company was purchased by Xandros[4][5] and in July 2011 sold to Sebring Software Inc,[6][7] a collaborative integration software company offering on-premises and cloud solutions.