YSL is the first South African company to offer Microsoft Exhange as a hosted solution. 

However, the Hosted Exchange 2007 offering is more than simply a Microsoft Exchange solution, says Louis Yssel, CEO of YSL.
With YSL’s y•suite, to be commercially available in early August 2007, users have access to the fully converged communication capabilities of Outlook 2007 including telephony.
The suite utilises the online collaboration and integrated communications functionality already catered for in Outlook, to streamline communication with contacts easier, turning y•suite into powerful business tool.
Exchange 2007’s fully converged communication capabilities make it the perfect platform for a range of integrated communication tools.
YSL offers the Hosted Exchange Services in two models, a monthly subscription service for SME’s and professional practices or as an outsourced service for large businesses that have existing infrastructure.