Product: Ensim Pro for Linux
Version: 4.0.2-7(Fedora Core 1and Red Hat Enterprise Linux 3ES)
Date:  May 27,2005
Patch Description:  Addresses the issue:
If  customization is done to the file /etc/MailScanner/MailScanner.conf , it gets overwritten arbitrarily.

Download : 
For fc1:       ftp://ftp.ensim.com/outgoing/kb/4.0.2/mailscanner/fc1/mailscanner.pyc 
(md5sum: 6d60476174dde7bbf07f92566d615223)
For RHEL:  ftp://ftp.ensim.com/outgoing/kb/4.0.2/mailscanner/rhel/mailscanner.pyc 
(md5sum: 91a427876983d9169c3337b762033abd)

Installation Procedure:

1. Download appropriate mailscanner.pyc file for the EPL version that you are running and verify md5sum.

2. Back up /usr/lib/ensim-python/site-packages/vh3/modules/mailscanner.pyc file.

3. Copy the downloaded mailscanner.pyc file in place of /usr/lib/ensim-python/site-packages/vh3/modules/mailscanner.pyc

4. Restart Webppliance