Setting Phrase Filter Antispam Options (Content Filtering)

Use Phrase Filtering to enable/disable phrase searches for the current mail domain, create and maintain the phrase list, and specify an action to take when an email contains one of the phrases.

Phrase Filtering searches for common spam phrases within selected areas of email messages. If a message contains one of the phrases in the phrase list, it is identified as spam and you can configure actions to take on the message. Phrases are stored in the phrase-list.txt file, which is located in the IMail top directory.

Use: Set the following options to configure phrase filtering.

No Filtering. Disables phrase filtering.
Current Domain (selected by default). Select this option to define phrase filtering settings specific to the current mail domain.
Primary Domain (default for non-primary domains; not available for primary domains). Select this option to use the primary mail domain's phrase filtering settings instead of creating new settings for the current mail domain.

Scan: Select which part of a message phrase filtering will examine for phrase matches.

Subject
Body (default).
Subject and Body

Action taken on email determined to be spam:

Action:
- Delete. Immediately deletes the message.
- Forward to Address. Forwards the message to an email address entered in the text box to the right of this option. By default, messages are sent to the root address and stored in a mailbox called "bulk". Example
- Insert X- Header (default). Inserts an X- Header into the message indicating that the message contained a phrase that is in the phrase list. For more information, see Spam X-Header Explanations.
- Move to Mailbox. Moves the message to the user's mailbox specified in the text box to the right of this option. If the mailbox does not exist, it is created.
- None. No action is performed on messages identified as spam by the phrase filter.

Tip: We recommend that you select the Insert X-Header option instead of Delete until you know that the antispam options are setup correctly.

Note: For more spam options see Using Delivery Rules to Filter Spam.

Prefix subject with. If selected, the subject of a message that is identified as spam by the phrase filter will be modified to begin with X-IMail-Spam-Phrase.

Normalize Words. If this option is selected, IMail strips out all non-alphabetic characters from words before comparing them to the phrase list.

To Edit an Antispam Phrase Filter:

From the Phrase Filtering page, click Edit Phrases. The Phrase Filter Text Editor page appears. The File information displays the file directory where the phrase-list.txt file is saved.
Enter text phrases that you want the phrase filter to search for within selected parts of email messages. Press Enter after each phrase is entered in the text editor.
Click Save.