Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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:

As a convenience, the size measurement may be specified with a suffix:

The 

remote-ip 

rule tests to see if the IP address of the host that sent that message matches a certain 

pattern. The IP address can be either Internet Protocol version 4 (IPv4) or Internet Protocol version 6 
(IPv6). The IP address pattern is specified using the allowed hosts notation described in “Sender Group 
Syntax”, except for the 

SBO

, 

SBRS

, 

dnslist

 notations and the special keyword 

ALL

. 

The allowed hosts notation can only identify sequences and numeric ranges of IP addresses (not 
hostnames). For example, the following filter bounces any message not injected from IP addresses of 
form 

10.1.1.

x where 

X

 is 

50

, 

51

, 

52

, 

53

, 

54

, or 

55

.

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

10b

ten bytes (same as 10)

13k

thirteen kilobytes

5M

five megabytes

40G

40 gigabytes (Note: The Cisco appliance cannot accept messages larger than 100 
megabytes.) 

notMineFilter:

   if (remote-ip != '10.1.1.50-55')