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A number of options are available for deploying a messaging security infrastructure. One option is to host security offsite. Many vendors provide hosted security services; the MX records direct all e-mail through the host data center and the host processes the mail. A number of options for on-site security are also available. One is to use a security appliance to provide dedicated antivirus and antispam processing. Organizations need to determine which option best meets their needs. Today system administrators have a lot more on their plates than they used to have. They deal with archiving and electronic discovery as well as anti-spyware, Web filtering, encryption, and lots of other capabilities. Cost over time is becoming a much more critical consideration.
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