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 company was funded by venture firms
New Enterprise Associates (NEA), Mohr Davidow Ventures (MDV) and
Mayfield Fund. The code is based on the earlier
HP OpenMail product, which was licensed from
Hewlett-Packard. In 2006, Scalix had thousands of customers for a total of over a million mailboxes. A majority of customers were migrating away from legacy software like
Microsoft Exchange and
Lotus Notes. In July 2007, the company was purchased by
Xandros and in July 2011 sold to Sebring Software Inc, a collaborative integration software company offering on-premises and
cloud solutions. On November 11, 2013, a
press release announced a management buy-out and the concurrent release of version 12.0. ==Software license==