dmarcian - Safeguard your email from abuse

Sirius - An open-source clone of Siri from UMICH

Proofpoint - Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.

Applied Software - Prepare to work with an industry champion! Applied Software specializes in bridging the technology divide from product to productivity no matter your industry.

Hornetsecurity - Hornetsecurity offers you comprehensive, integrated managed e-mail security services.

Ingram Micro - Delivering global technology and supply chain services to support cloud aggregation, data center management, logistics, technology distribution, mobility device life-cycle and training.