AVG 8.5 EMAIL SERVER EDITION - V 85.4 User Manual page 19

Enable – you can enable or disable mail scanning here.
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Background Scanning – you can enable or disable the background scanning
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process here. Background scanning is one of the features of the VSAPI 2.0/2.5
application interface. It provides threaded scanning of the Exchange
Messaging Databases. Whenever an item that has not been scanned before is
encountered in the users' mailbox folders, it is submitted to AVG for Exchange
2007 Server to be scanned. Scanning and searching for the not examined
objects runs in parallel.
A specific low priority thread is used for each database, which guarantees
other tasks (e.g. e-mail messages storage in the Microsoft Exchange
database) are always carried out preferentially.
Proactive Scanning – you can enable or disable the proactive scanning
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function of VSAPI 2.0/2.5 here. The proactive scanning lies in dynamical
priority management of items in scanning queue. The lower priority items are
not being scanned unless all the higher priority ones (most frequently
supplied on demand in the queue) have been scanned. However, the priority
of an item rises if a client tries to use it, so the precedence of the item
changes according to users' activity.
Scan RTF – you can specify here, whether the RTF file type should be
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scanned or not.
Scanning Threads – the scanning process is threaded by default to increase
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the overall scanning performance by a certain level of parallelism. You can
change the threads count here. The default number of threads is computed as
2 times the 'number_of_processors' + 1.
Scan Timeout field – the maximum continuous interval (in seconds) for one
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thread to access the message that is being scanned.
Move infected files to the Virus Vault – if checked on, every infected
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e-mail message file will be moved into AVG Virus Vault quarantine
environment.
Delete messages with infected files (ES 2003/2007 only) – after
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checking this item on, a message where a virus is detected will be deleted.
When this item is checked off, the infected e-mail is delivered to recipient,
but infected attachment is replaced with a text file containing information on
the virus detected. This option is available only in VSAPI 2.5 in Exchange
2007 Server.
Generally, all the features on this tab are user extensions of the Microsoft VSAPI
2.0/2.5 application interface services. For the detailed information on the VSAPI
2.0/2.5 please refer to the following links (and also the links accessible from the
referenced ones):
AVG 8.5 Email Server Edition © 2009 Copyright AVG Technologies CZ, s.r.o. All rights reserved.
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