Symantec Brightmail Requirements and Performance Considerations

• Symantec Brightmail servers must run the Solaris^TM Operating System.

• Because spam and virus filtering involve significant work, adding Symantec Brightmail server (configured to perform both spam and virus filtering) to an existing Messaging Server host serving as an MTA can, due to the additional work performed, reduce overall message throughput on that host by as much as 50 percent. To allow Symantec Brightmail to perform its valuable work without reducing overall message throughput, a rule of thumb might be to add two dedicated Symantec Brightmail servers for each MTA, so that the Symantec Brightmail servers can “keep up” with the usual MTA message throughput.