Exception Control | Surf Control 5.2.4 manual

SYSTEM SETTINGS

Receive Settings

2

To configure message control:

1Select Receive Settings > Message Control from the System Settings tab.

2Select Limit message size and enter a maximum message size into the corresponding Maximum size (KB) field. This can prevent very large messages from using valuable bandwidth.

3Select Limit data size per connection and enter a maximum amount of data into the corresponding Maximum data size (KB) field. This can help limit the receiving of messages with very large attachments, which can take up valuable bandwidth.

4Select Limit number of messages per connection and enter a maximum number of connections into the Maximum messages field.

5Select Limit number of recipients per message and enter a maximum number of recipients into the Maximum recipients field. This can save bandwidth by preventing one message from being sent to hundreds of users.

6Select Block messages with attachments of a specific type if you never want to receive certain attachments.

•Enter the attachment extension into the Attachment Extensions field. Multiple extensions must be separated by a semi-colon.

•Enter a message into the Error Message field. This will be displayed to the MTA client when a message is blocked.

7Click Submit to put the new settings into effect or click Reset if you want to cancel the modifications made to the current settings.

EXCEPTION CONTROL

While RiskFilter is processing messages, it may encounter unexpected exceptions, such as encrypted e- mail messages. Exception Control enables you to specify what action is to be taken when exceptions occur:

•Deliver message – Send the message to the recipient. This is the default action.

•Drop message – Delete the message.

•Isolate message – Send the message to the Isolate queue.

You can also specify that a message is sent when the Exception Control filter is triggered. Selecting this check box opens the screen up further so that you can enter details for this message.

Figure 2 - 20 Set what action is taken on messages

SurfControl RiskFilter - E-mail V5.2.4

Administrator’s Guide 35

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Surf Control 5.2.4 manual Exception Control, Set what action is taken on messages

Contents

SurfControl RiskFilter E-mail Contents Policy Manager Riskfilter System Management Console Appendix Chapter HOW Riskfilter Works Managing Your Messages with Riskfilter Control ConnectionRelay Control Load Balancing with Riskfilter Mail Exchanger IP Address MX Preference Load balancing with RiskFilter Riskfilter System Management Console Launching Surfcontrol RiskfilterHttps//hostnameoripaddress10000 Https//hostnameoripaddress/admin Riskfilter Management Console AdministratorOpening the RiskFilter Management Console Before YOU Start System Settings What can be Configured in the System Settings TAB? System Settings TABTerminology Used Configuration Select General Configuration from the System Settings tabGeneral Postmaster e-mail address Other Settings Admin ConsoleSession Timeout Smtp greeting User Directories Editing User Directories Deleting a User Directory Open the User Directories screen Microsoft Active Directory Click Add in the User Directories screen IBM Ldap server Select IBM Ldap Server Generic Ldap Click Add in the User Directories screen Select Generic Ldap Validation settings Esmtp Server Information Recipient File Local Database To add a local database Click Add Secure Proxy Select General Secure Proxy from the System Settings tabLocal Database Add/Edit Address screen is displayed Select Enable Webmail Proxy Select Enable POP3 ProxySelect Enable Imap Proxy Select General Directories from the System Settings tab Setting up the storage directoriesLogs and Archives Certificate Notifications Select General Certificate from the System Settings tab Importing CertificatesExporting Certificates Certificate Signing Request Connection Settings Receive SettingsConnection Control Smtp Greeting Delay Allow Access List Directory Attack Control 16 The Directory Attack Control screen Relay Control SPF Authentication ConfigurationControlling relaying of messages Allowing relaying to specific domains Relay for Internal Senders Adding details of domains Recipient ValidationAdd validation servers Message Control 19 The Message Control screen Exception Control 20 Set what action is taken on messages To configure exception control Black List Adding an IP or subnet address to the blacklist Importing and exporting Lists Adding domain or e-mail addresses to the blacklist Adding an IP or subnet address to the White List White ListDynamic White List Receive Settings Send Settings Setting up the destination domainsDOMAIN-BASED Delivery Delivering the messages Using TLS authentication Transport Layer Security Select Forward mail to the following Smtp servers Traffic Control Advanced Delivery Send Settings User Management Account Manager Changing the Administrator Account Password Specifying Administrator Access Setting up Administrator Access Personal E-MAIL Manager Editing Administrator AccountsSelect Account Manager from the User Management menu Setting up the PEM message 31 What the user sees Personal E-mail Manager Exporting lists of users Adding usersImporting lists of users End-user Bypass Anti-Spam Setting Setting up End User ControlEND-USER Control User List User Authentication Authenticating PEM users Authenticating remote users License & Updates Update NOW Updating your Anti-Spam Agent Definitions AVA and ASA License Expired Select the Anti-Virus Agent Update check box Scheduled UpdateUpdating the Anti-Virus Agent Select the Anti-Spam Agent Update check box License StatusUpdating the Anti-Spam Agent Updating Component Licenses Manually setting up a license server Update ServerViewing component licenses License Server User Number Exceeded Admin Guide Contact Support Select Help Contact Support from the System Settings tabHelp Submitting a Support Request Firstboot Wizard Configuration Wizard KEY Points Key Points Policy Manager What can be Configured in the Policy Manager TAB? Policy Manager TAB Defining Users Creating a PolicyDefining the Action Defining the Rules Global Policy Filter List Address Group Importing and Exporting Lists Deleting Address Groups Queue Manager Adding Queues Editing a Queue Select Queue Manager from the Policy Manager tab Surfcontrol Dictionaries Dictionary ManagerEditing SurfControl Dictionary properties Adding words to the SurfControl Dictionaries Changing the value of words in the SurfControl DictionariesDeleting a word or phrase Custom Dictionaries Create a new dictionary Importing Dictionaries Importing a SurfControl Dictionary Pack Creating a unicode text file Worthlesstab space15 balancetab space10 Exporting a dictionary Importing a unicode text fileSelect Import from a Unicode text file Global Policy Creating a NEW SUB-POLICY Select Global Policy from the Policy Manager tab 15 Enter the details of the new Sub-policy Deleting a SUB-POLICY Editing a SUB-POLICYAdding Filters to the Policy Defining a Filter 18 The Global Policy Filter List screen ANTI-VIRUS Agent Filter Creating a new filterEditing the Anti-Virus Agent Filter Select Global Policy Filters from the Policy Manager tab Global Policy ANTI-SPAM Agent Filters Select Anti-Spam Agent DFP Configuring the Anti-Spam Agent Heuristics Filter Select Anti-Spam Agent Heuristics Configuring the Anti-Spam Agent LexiRules Filter Select Anti-Spam Agent LexiRules Internet Threat Database Filter 23 The Internet Threat Database Filter screen Editing the Internet Threat Database Filter Standard DisclaimerSelect the Internet Threat Database Filter and click Next Editing the Standard Disclaimer Filter Select the Standard Disclaimer Filter Editing the General Content Filter General Content FilterSelect the General Content Filter and click Next Editing the Advanced Content Filter Advanced Content FilterSelect the Advanced Content Filter and click Next Using the Expression List 27 The Expression screen Using Logical Operators Examples showing the use of Operands RiskFilter and Gateway and InnovationRiskFilter or Gateway or Innovation Occur gateway Assume Frequency =2 Message Attachment Filter 28 Message Attachment Filter screen Editing the Message Attachment Filter Select the Message Attachment Filter and click Next Creating a new Content Guardian filter Content GuardianSelect the Internet Content Guardian Filter and click Next Adding a filtering rule Deleting a filtering rule Dictionary Threshold FilterHow the Dictionary Threshold Filter works Configuring the Dictionary Threshold Filter Select the Dictionary Threshold Filter and click Next Global Policy KEY Points Key Points Reports & Logs What can be Configured in the Reports and Logs TAB? Reports and Logs TAB Dashboard Server status monitoring Master Report Querying the Master ReportSelect Master Report from the Reports and Logs tab Select Specified date range from the Logs for list box Master Report Message Report Querying the Message Report Policy Report Querying the Policy Report Virus Report Querying the Virus Report Spam Report Querying the Spam Report Connection Report Querying the Connection Report Connection Report System Report Isolated Messages Managing Isolated MessagesSelect Isolated Messages from the Reports and Logs tab Click View Messages Isolated Messages Managing the Virus Messages Virus MessagesSelect Virus Messages from the Reports and Logs tab 14 An Archived message Managing Spam Messages Spam MessagesSelect Spam Messages from the Reports and Logs tab To view a message click the subject Managing Archived Messages Archived MessagesSelect Archived Messages from the Reports and Logs tab Export Messages View Messages Reprocess MessagesClick Reprocess Messages 19 Select the check box alongside the message Querying Deferred Messages Deferred MessagesSelect Deferred Messages from the Reports and Logs tab 22 An Archived message KEY Points Key Points RiskFilter System Management Console What can be Configured with the System Management CONSOLE? Overview Accessing the Riskfilter System Management Console Rfmngr Account What can be Configured in the Webmin TAB? Webmin TAB Webmin Configuration IP access controlSelect Webmin Configuration from the Webmin tab Webmin Actions LOG Select Language from the Webmin Configuration screen Select Logging from the Webmin Configuration screenLanguage Ports and Addresses Webmin Servers Index Proxy ServersAdding Webmin Servers Select Webmin Servers Index in the Webmin What can be Configured in the System TAB? System TAB Bootup and Shutdown Change PasswordsSelect Change Passwords in the System tab Historic System Statistics Multi Gateway Policy Routing Select Multi Gateway Policy Routing in the System tab Network Configuration Network Interfaces Setting up additional NICs Multi-NIC configuration in RiskFilterEnter an IP Address 11 The Create Bootup Interface screen Routing and Gateways Select DNS Client from the Network Configuration tab DNS Client Host Addresses 15 Host Addresses System Time Running ProcessesSelect System Time in the System tab System and Server Status Click Sync system time What can be Configured in the Riskfilter TAB? Riskfilter TAB Riskfilter Services Manager Riskfilter Backup Manager Riskfilter Cluster Wizard Click Complete Load balancing with RiskFilter 25Load balancing 26 RiskFilter in a cluster set up Riskfilter WEB Access Manager Select Web Access Manager in the RiskFilter tab Update Riskfilter E-MAIL 28 The Update RiskFilter-E-mail screen KEY Points Key Points Appendix Using the Command Line Interface # sudo /etc/init.d/smgd status Clean queues QTOOL.SH Using the Command Line Interface Using the Command Line Interface Using the Command Line Interface UNINSTALL.SH Example 6 uninstalling the RiskFilter software All items were successfully uninstalled Internet Threat Database Categories Internet Theat Database CategoriesCore / Liability Categories Productivity Categories Core / Liability Categories Productivity Categories Special Events Other Index Administrator’s Guide SurfControl RiskFilter E-mail SurfControl RiskFilter E-mail Administrator’s Guide OpenSSL Sun RPC Apache Software License, Version Expat XML Parser Toolkit SPFJava Ldap