PostPath, a start-up offering a Linux-based email and collaboration server, raised $15 Million in Series C funding. The PostPath Server is a drop-in and plug-compatible alternative to Exchange, providing full-featured support for Outlook without the need for complicated plug-ins or other desktop changes, and without disrupting existing email infrastructure. The round was led by JAFCO Ventures; existing investors Matrix Partners and Worldview Technology partners also participated. This brings total funding to approximately $30 million.PostPath...