San Diego-based Iomega announced today that it has partnered with Postini, a provider of email filtering services, to target small and mid-sized businesses. Iomega said it will deliver Postini's security and compliance products to SMBs, through its reseller and distributor channel. The offering will be part of Iomega's new OfficeScreen Managed Email and Spam Defense service. The new email screening service is part of Iomega's move to become a managed network security services provider targeted at SMBs.