Symantec 10744983 Administration Guide - Page 116

116 Configuring email filtering Managing Email Firewall policies ■ The maximum number of sender lines per file when importing senders is 500,000. To add more (up to the limit noted below), divide senders into multiple files and import multiple times. ■ The maximum number of total allowed and blocked senders that can be stored is 650,000. ■ No warning is displayed if you exceed these limits. Sender data is silently dropped. Format of allowed and blocked sender file The file is line-oriented and uses a format similar to the Lightweight Directory Interchange Format (LDIF). It has the following restrictions and characteristics: ■ The file is in the installation directory, in the following location: /scanner/rules/allowedblockedlist.txt ■ The file must have the required LDIF header that is included upon installation. Do not change the first three uncommented lines: dn: [email protected], ou=bmi objectclass: top objectclass: uiaBlackWhiteList ■ After the header, each line contains exactly one attribute, along with a corresponding pattern. ■ Empty lines or white spaces are not allowed. ■ Lines beginning with # are ignored. ■ Entries terminating with the colon-dash pattern (:-) are disabled; entries terminating with the colon-plus pattern (:+) are enabled; entries with neither set of terminating symbols are enabled. To populate the list, specify an attribute, which is followed by a pattern. In the following example, a list of attributes and patterns follows the LDIF header. See below for an explanation of the attribute codes. ## Permit List # dn: cn=mailwall, ou=bmi objectclass: top objectclass: bmiBlackWhiteList AC: 65.86.37.45/255.255.255.0 AS: [email protected] RC: 20.45.32.78/255.255.255.255