McAfee GSSCDE-AA-DA - GroupShield Security Suite User Manual page 164

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McAfee GroupShield 7.0 User Guide
2 In
the email message through or delete it, if scanning fails.
3 In
Note
Note
Note
4 In
General Allow Through
, choose
Microsoft Virus Scanning API (VSAPI)
Enabled
Select or deselect
VSAPI is implemented at a very low-level in the Exchange Information Store. This allows
a virus scanning application to run with high performance, and guarantees that the
message will be scanned before any client can access the message or its attachment.
This allows messages and attachments to be scanned once before delivery, rather than
multiple times (depending on the number of mailboxes to which the message is
delivered). This single-instance scanning also helps prevent messages from being
re-scanned when a message is copied, which results in improved system performance.
Proactive Scanning
Select or deselect
messages and files when they are written to the store.
Proactive scanning is a type of scanning that is made possible by Microsoft
enables objects from the store to be scanned in order of priority.
Items passing in and out of the store receive a priority rating and are placed in a scanning
queue. The scanning queue allows prioritization and re-prioritization of items in the
queue.
For example, if a user tries to open an item that has not been scanned, it is assigned a
high priority, whereas items being saved or posted to public folders are assigned a low
priority. This is known as priority based queuing.
When all the high priority items have been scanned, scanning of lower priority items
begins. The latter scans on a first-in-first-out (FIFO) basis.
Background Scanning
Select or deselect
should be enabled or not.
Enable At
You can use
Background scanning is a type of on-access scanning made possible within Microsoft
Exchange 2003/2007 by Microsoft
reducing the scanner's workload. It scans the databases on which it has been enabled.
Background scanning is off by default.
Scan Timeout (seconds)
Type
gets timed out.
Default
Check the option to use the default
the option and enter a desired value. We recommend you to use the
option.
Transport Scan Settings
:
Remove
or depending on whether you want to allow
:
to specify whether VSAPI should be enabled or not.
to specify whether or not to scan email
to specify whether background scanning
Disable At
and to schedule the background scanning.
®
VSAPI, which does not scan all files on access,
to specify a time to wait for a scan to wait before it
Number of Scan Threads
164
Settings & Diagnostics
On-access settings
®
VSAPI. It
®
, else deselect
Default
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