Symantec 10744983 Administration Guide - Page 104

104 Configuring email filtering Creating virus, spam, and compliance filter policies Table 4-8 Additional fields for adding conditions (continued) Condition Information required Message header Type the header category (From, To, etc.), then follow the instructions in the first tow above. Message size Choose a comparison from the first drop-down list, type a number, and choose units from the second drop-down list. The following table 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 in some cases 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 Ends with/does not Equivalent to .*text$ wildcard test using matches exactly. end with Matches exactly/does Exact match for the supplied text. not match exactly, Exists/does not exist Notes: All text tests are case-insensitive. Some tests are not available for some components. Using Perl-compatible regular expressions in conditions To use regular expressions that behave like Perl regular expressions, click "matches regular expression" or "does not match regular expression" for either of the condition options that offer you that choice. The Symantec Mail Security wraps your regular expression in two forward slashes. Or you can use a pattern to match certain special characters, including forward slashes, you must escape each with \ as shown in the table.