Other changes include the Kerio Workspace Client (to automatically push updated files back to the server and on to other users), synchronisation of project dates and deadlines with Outlook and iCal (etc), iPad optimisation, and a new social media style for user pages.
"Kerio Workspace 2.0 with Sophos is not only an important step for our product, but an important security layer for the growing collaboration and file sharing space," said Scott Schreiman, CEO, Kerio Technologies.
"Whether via the cloud, or an on-premise server, many of our Workspace customers are sharing data with outside partners and customers. They will sleep better knowing we have partnered with a best-in-class security vendor to keep their data safe."
Kerio Workspace 2.0 is available as on-premises software or as a hosted service from the company's partners and resellers. First-year on-premises licences cost $US165 for up to five users plus $US33 for each additional user
A free starter edition handles up to 5GB of data for unregistered organisations, increasing to 10GB after registration.