Product: Ensim Pro for Linux
Version: 4.0.3 (Fedora Core 1,Fedora Core 2 and 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/4.0.3/mailscanner/fc1/mailscanner.pyc
(md5sum:82d93fa35c978e5dd07f4a94d5c34df5)
For fc2:      ftp://ftp.ensim.com/outgoing/kb/4.0.3/mailscanner/fc2/mailscanner.pyc
(md5sum:73e28405876d818d863dcd6044698bee)
For RHEL:   ftp://ftp.ensim.com/outgoing/kb/4.0.3/mailscanner/rhel/mailscanner.pyc 
(md5sum: 44ebabdbb3de32a5432c32ccc474fe6b)

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