F-SECURE ANTI-VIRUS - FOR MICROSOFT EXCHANGE Administrator's Manual page 81

Step 8. Processing Options
Choose advanced processing options for all the messages processed
during the scheduled operation.
Processing options
Incremental scanning Specify whether you want to process all
Max levels of nested
messages
Centrally Managed Administration
messages or only those messages that have not
been processed previously during the manual or
scheduled processing.
Specify how many levels deep to scan in nested
e-mail messages. A nested e-mail message is a
message that includes one or more e-mail
messages as attachments. If zero (0) is
specified, the maximum nesting level is not
limited.
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