Symantec 10490452 Administration Guide - Page 90

90 Configuring email filtering Creating virus, spam, and compliance filter policies Table 4-8 shows the additional fields available when you add a condition. Table 4-8 Additional fields for adding conditions Condition Information required Attachment content, Bcc: address, Body, Cc: address, Envelope HELO, Envelope recipient, Envelope sender, From: address, From/To/Cc/ Bcc: address, Subject, To: address, To/Cc/Bcc: address Choose one of three options: ■ Click the first radio button, choose contains or does not contain, type a frequency and a keyword. ■ Click the second radio button, choose a test type, and type a keyword. ■ Click the third radio button, choose matches or does not match, and type a regular expression Any part of the message Choose a dictionary from the drop-down list, and type a word frequency in the box. Attachment type Choose one of three options: ■ Click the first radio button and choose an attachment list. ■ Click the second radio button and type a filename. ■ Click the third radio button and type a MIME type. This condition will also flag attachments that are within container files. For all messages No additional information is needed. This condition flags all messages not filtered by a higher precedence policy. Message header Type the header category (From, To, etc), then follow the instructions in the first row above. Message size Choose a comparison from the first drop-down list, type a number, and choose units from the second drop-down list. Table 4-9 describes the filter tests available for certain conditions when creating a compliance policy. Table 4-9 Filter tests Test type Description Contains/does not contain Tests for the supplied text within the component specified. Sometimes called a substring test. You can also test for frequency the number of instances of the supplied text that appear. Starts with/does not Equivalent to ^text.* wildcard test using matches exactly. start with