F-SECURE ANTI-VIRUS - FOR MICROSOFT EXCHANGE Deployment Manual - page 67
CHAPTER 4
65
Configuring F-Secure Spam Control
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
Environment Variables..
button.
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:
5.
Click
OK
.
6.
Restart the computer to take the new system environment variable
into use.
4.2.2
Optimizing F-Secure Spam Control Performance
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