Optimizing F-Secure Spam Control Performance - F-SECURE ANTI-VIRUS - FOR MICROSOFT EXCHANGE Deployment Manual

4.2.2

Optimizing F-Secure Spam Control Performance

To force F-Secure Spam Control to use a specific DNS server, do the
following:
1. Right-click the My Computer icon and select Properties.
2.
Select Advanced and click the
3.
In the System variables panel click New.
4.
In the New System Variable dialog specify the new variable as
follows:
Variable Name: RES_NAMESERVERS
Variable Value: <the IP address of the desired DNS server>
5.
Click OK.
6.
Restart the computer to take the new system environment variable
into use.
Due to the nature of DNSBL/RBL, processing time for each mail
increases when DNS queries are made. If needed, the performance can
be improved by increasing the number of mails being processed
concurrently by F-Secure Spam Control.
By default, the product processes a maximum of three e-mails at the
same time, because there can be three Spam Scanner engine instances
running simultaneously. The number of Spam Scanner instances can be
controlled by using a command-line switch for F-Secure Content Scanner
Server.
To change the value to 5, so that a maximum five mails can be processed
at the same time, type: fsavsd.exe --spam-scanner-instances=x (x is the
value you want to take into use), for example:
C:\Program Files\F-Secure\Content Scanner Server>
fsavsd.exe --spam-scanner-instances=5
F-Secure Content Scanner Server Daemon, 7.20.134
Copyright (c) 1998-2009 F-Secure Corporation
Configuring F-Secure Spam Control
Environment Variables..
CHAPTER 4
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