Руководство Пользователя для Cisco Cisco Email Security Appliance C170

The 

sendergroup

 message filter selects a message based on which sender group was matched in a 

listener's Host Access Table (HAT). This rule uses '==' (for matching) or '!=' (for not matching) to test 
for matching a given regular expression (the right side of the expression). For example, the following 
message filter rule evaluates to 

true

 if the sender group of the message matches the regular expression 

Internal, and, if so, sends the message to an alternate mail host. 

Body size refers to the size of the message, including both headers and attachments. The 

body-size

 rule 

selects those messages where the body size compares as directed to a given number. For example, the 
following filter bounces any message where the body size is greater than 5 megabytes.

The 

body-size

 can be compared in the following ways:

   {

 skip-filters();

   }

senderGroupFilter:

      if (sendergroup == "Internal")

      {

        alt-mailhost("[172.17.0.1]");

      }

BigFilter:

   if (body-size > 5M)

   {

        bounce();

   }

body-size < 10M

Less than

body-size <= 10M

Less than or equal

body-size > 10M

Greater than

body-size >= 10M

Greater than or equal

body-size == 10M

Equal

body-size != 10M

Not equal