Premium Antispam

Note: At the top of each Services page, the name of the Service, its Status (Running or Stopped), and a Start/Stop button appears. This allows you to Start or Stop individual Services from your respective web pages, as well as from the Service Administration page.

NEW: Two new Antispam settings were added: 1) Filtering for "dirty" IP addresses and 2) Enabling Telemetry. Read below for details.

Use the Premium Filter Settings page to stop and start the Star Engine Service, enable logging, and configure Star Engine antispam updates.

Enable logging. Select the check box to enable logging. The location for log files is set on the System > DNS BLack Lists > Save Logs To text field.
Verbose logging. This option records more information than standard logging, such as changes to antispam settings, and entries in the trusted addresses list or exclude list. This option can create a very large file and may be resource intensive, however, it is especially helpful in troubleshooting issues.

Note: The following settings apply to the selected domain. These options help to filter emails sent as part of a campaign and to identify IP addresses used to send spam, also know as "dirty" IP addresses. When mail fails the header checks, IMail takes the action specified.

The following options help to filter emails sent as part of a campaign and to identify IP addresses used to send spam, also known as "Dirty IP" addresses. The default settings are by default tied to the AntiSpam > Premium Filter that is identified as spam.

Flag missing Subject: header as spam. Checks that the Subject Header exists. If the Subject Header is missing, it will take the action specified in For email determined to be from a dirty IP section of the Premium Antispam Filter page.
Flag missing From: and To: headers as spam. Checks that both the From and To fields in the header exist. If either field is missing, it will take the same action specified in the For email determined to be from a dirty IP section of the Premium Antispam Filter page.

Update Engine Options

Update Priority. You can elect to configure Mail Filters to maximize either filtering speed or filtering memory usage, or you can choose a balance of the two.
- Balance. Select this option if you wish an update using optimal filtering speed and memory usage. We recommend this option.
- Speed. Select this option if you wish an update that maximizes filtering speed. This setting gives the highest performance/most memory intensive setting. Note that in this mode the engine can quickly consume in excess of one GB of memory and process thousands of messages per second.
- Memory. Select this option if you wish an update that maximizes memory usage at the expense of performance.
Full Database Update Interval (1-7 days). Enter the number of days between full database updates.
Differential Update Frequency (1-60 minutes). Enter the number in minutes between database differential updates.
Proxy Server. Enter the name of the proxy server selected for update requests.
Proxy Port. Enter the port for the proxy server. 16 is the default.

Important: The Enable Telemetry option will send data from your server to Mail-Filters. This data will help increase the spam detection provided by Mail-Filters. By default, the option is disabled.

Enable Telemetry(Enabled by default). If enabled, sends aggregate data compiled by the Premium Antispam filter to Mail-Filters. Mail Filters uses the data to provide increased spam detection by detecting spam campaigns.
Mail-Filters describes the Telemetry feature as follows: To better fight spam, Mail-Filters would like to collect certain information that will help us to identify spammers and where they are sending messages from. This feature must be turned on for the reputation authority features to work and will enhance catch rate. It can be turned off. The telemetry information is collected as aggregated totals and are not used to identify individual mail messages, but to show traffic flow and trends. An example of the information we might gather is as follows:
- What Mail-Filters Bullet Signatures are tagging messages and how many messages are being tagged.
- Where messages are being sent from.
- How many messages are being received by aggregate totals of each category - Spam, Good Mail, mail messages sent from a known spammer IP address, or not scanned or if and error occurred on scan.
  Important:No Message specific information is gathered or sent to Mail-Filters.
  
  Telemetry information is an important tool in helping the fight against spam and will help your catch rate. It is transmitted to Mail-Filters via the standard update process. If telemetry is turned on, then the information is sent to Mail-Filters along with a request for an update.