User manual NOD32 ESET MAIL SECURITY FOR MICROSOFT EXCHANGE SERVER

[. . . ] ESET Mail Security 4 for Microsoft Exchange Server Version 4. 3 Installation Manual and User Guide Microsoft® Windows® Server 2000 / 2003 / 2008 Click here to download the most recent version of this document ESET Mail Security 4 Copyright ©2011 by ESET, spol. s r. o. ESET Mail Security was developed by ESET, spol. For more information visit www. eset. com. No part of this documentation may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise without permission in writing from the author. [. . . ] To account for this, the Web browser feature can establish control of port communications regardless of the connection parameters. The list of applications marked as web browsers is accessible directly from the Web browsers submenu of the HTTP, HTTPs branch. This section also contains the Active mode submenu, which defines the checking mode for Internet browsers. 55 Active mode is useful because it examines transferred data as a whole. If it is not enabled, communication of applications is monitored gradually in batches. This decreases the effectiveness of the data verification process, but also provides higher compatibility for listed applications. If no problems occur while using it, we recommend that you enable active checking mode by selecting the checkbox next to the desired application. 4. 1. 5 On-demand computer scan If you suspect that your computer is infected (it behaves abnormally), run an On-demand computer scan to examine your computer for infiltrations. From a security point of view, it is essential that computer scans are not just run when an infection is suspected, but regularly as part of routine security measures. Regular scanning can detect infiltrations that were not detected by the real-time scanner when they were saved to the disk. This can happen if the real-time scanner was disabled at the time of infection, or if the virus signature database is not up-todate. We recommend that you run an On-demand computer scan at least once a month. Scanning can be configured as a scheduled task from Tools > Scheduler. 56 4. 1. 5. 1 Type of scan Two types of On-demand computer scan are available. Smart scan quickly scans the system with no need for further configuration of the scan parameters. Custom scan… allows you to select any of the predefined scan profiles, as well as choose specific scan targets. 4. 1. 5. 1. 1 Smart scan Smart scan allows you to quickly launch a computer scan and clean infected files with no need for user intervention. Its main advantages are easy operation with no detailed scanning configuration. Smart scan checks all files on local drives and automatically cleans or deletes detected infiltrations. The cleaning level is automatically set to the default value. For more detailed information on types of cleaning, see section Cleaning 62 . 4. 1. 5. 1. 2 Custom scan Custom scan is an optimal solution if you wish to specify scanning parameters such as scan targets and scanning methods. The advantage of Custom scan is the ability to configure the parameters in detail. The configurations can be saved to user-defined scan profiles, which can be useful if scanning is repeatedly performed with the same parameters. To select scan targets, select Computer scan > Custom scan and select an option from the Scan targets drop-down menu or select specific targets from the tree structure. A scan target can also be more precisely specified by entering the path to the folder or file(s) you wish to include. If you are only interested in scanning the system without additional cleaning actions, select the Scan without cleaning option. [. . . ] The main advantage of a Baysesian filter is its flexibility. For example, if a user is a biologist, all incoming emails concerning biology or relative fields of study will generally receive a lower probability index. If a message includes words that would normally qualify it as unsolicited, but it is sent by someone from the user’s contact list, it will be marked as legitimate, because senders from a contact list decrease overall spam probability. 5. 2. 4. 3 Whitelist In general, a whitelist is a list of items or persons who are accepted, or have been granted permission. [. . . ]