Marina Del Rey-based FrontBridge said today that it has signed on five new OEM partners to private label its email management services. Siemens Business Services, Equant, TELUS, VeriSign, and Sprint are among the company's new OEM partners. Those companies are all integrating the FrontBridge email security service into their offerings. FrontBridge provides message filtering service which eliminate spam and viruses from internal IT networks, and operates a global network of load balanced data centers.