The Office of the Comptroller of the Currency has awarded Unisys (NYSE: UIS) a potential five-year, $11.2 million contract to move approximately 4, 000 OCC employees to a cloud-based email platform.

Cloud-based email solutions offer scale and flexibility. But they do some things better than others. Here are five areas in which they fall short in assisting email archival.

Of the concerns people have about cloud security today, data control and data loss rank high—just second behind BYOD according to Infonetic’s April 2013 report. No wonder the market for cloud-based ...