The document discusses how mail servers are increasingly overloaded due to rising email volumes and storage needs. It notes that email use has evolved and now files are regularly exchanged through email. This has led to a dramatic increase in the amount of data stored on mail servers. The document then introduces ArcMail's Defender Email Archive System as a solution to reduce this load on mail servers by archiving older emails, freeing up storage space and reducing backup costs and times. It provides an example of how one company used Defender to delay upgrading their mail server and avoid archiving problems by transitioning old emails to the Defender system.