Installation manual

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3.2.1.1.3 Microsoft Exchange Server 2003 (VSAPI 2.5)
This version of Microsoft Exchange Server includes VSAPI version 2.5.
If you uncheck the Enable antivirus and antispyware VSAPI 2.5 protection option, the ESET Mail Security plug-in
for Exchange server will not get unloaded from the Microsoft Exchange server process. It will only pass through the
messages without scanning for viruses. The messages however, will still be scanned for spam and the rules
will be applied.
If the Proactive scanning option is enabled, new inbound messages will be scanned in the same order in which
they were received. If this option is enabled and a user opens a message that has not been scanned yet, this
message will be scanned before the other messages in the queue.
The Background scanning option allows scanning of all messages in the system background. Microsoft Exchange
Server decides whether a background scan will run or not, based on various factors, such as the current system
load, the number of active users, etc. Microsoft Exchange Server keeps a record of scanned messages and the virus
signature database version used. If you are opening a message that has not been scanned by the most current virus
signature database, Microsoft Exchange Server sends the message to ESET Mail Security to be scanned before
opening the message in your email client.
Since background scanning can affect system load (scanning is performed after each virus signature database
update), we recommend using scheduled scanning outside working hours. Scheduled background scanning can be
configured via a special task in the Scheduler/Planner. When you schedule a Background scanning task you can set
the launch time, the number of repetitions and other parameters available in the Scheduler/Planner. After the task
has been scheduled, it will appear in the list of scheduled tasks and as with the other tasks, you can modify its
parameters, delete it or temporarily deactivate the task.
Enabling the Scan RTF message bodies option activates scanning of RTF message bodies. The RTF message bodies
may contain macro viruses.
The Scan transported messages option enables scanning of messages which are not stored on the local Microsoft
Exchange Server and are being delivered to other email servers through the local Microsoft Exchange Server. The
Microsoft Exchange Server can be configured as a gateway which then passes messages to other email servers. If
scanning for transported messages is enabled, ESET Mail Security also scans these messages. This option is only
available when the transport agent is disabled.
NOTE: Plain text email bodies are not scanned by VSAPI.
3.2.1.1.3.1 Actions
In this section you can specify the actions to be performed when a message and/or attachment is evaluated as
infected.
The Action to take if cleaning not possible field allows you to Block infected content, Delete infected content of
the message, Delete whole message including infected content or take No action. This action will be applied only
if the automatic cleaning (defined in ThreatSense engine parameter setup > Cleaning ) did not clean the
message.
The Deletion option allows you set Message deletion method and Attachment deletion method.
You can set Message deletion method to:
Delete message body – delete the body of the infected message; the recipient will receive an empty message
and any non-infected attachments
Rewrite message body with action information – rewrite the body of the infected message with information
about performed actions
Delete whole message – delete the entire message, including attachments; you can set what action should be
performed when deleting attachments
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