Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
OL-25136-01
Chapter 16      Enabling Your C350D Appliance
  •
The recipient email address is defined with the RCPT TO: statement. Any variable allocations 
prior to the RCPT TO:, but after the prior XMRG FROM, or RCPT TO command, will be 
mapped to this recipient email address.
4.
Each part is defined using the XPRT n command, with each part terminated by a period (.) character 
similar to the DATA command. The last part is defined by the XPRT n LAST command.
Variable Substitution
Any part of the message body, including message headers, can contain variables for substitution. 
Variables can appear in HTML messages, as well. Variables are user-defined and must begin with the 
ampersand (
&
) character and end with the semi-colon character (
;
). Variable names beginning with an 
asterisk (
*
) are reserved and cannot be used.
Reserved Variables
IPMM contains five special “reserved” variables that are predefined. 
For example, the following example message body (including headers) contains four distinct variables 
and five substitution locations that will be replaced in the final message. Note that the same variable may 
be used more than once in the message body. Also, the reserved variable 
&*TO;
 is used, which will be 
replaced with the recipient email address. This reserved variable does not need to be passed in as a 
separate variable. The variables in the example appear in bold.
Table 16-2
IPMM: Reserved Variables
*FROM
The reserved variable *FROM is derived from the “Envelope From” parameter. The 
“Envelope From” parameter is set by the “XMRG FROM:” command. 
*TO
The reserved variable *TO is derived from the envelope recipient value, as set by the 
“RCPT TO:” command.
*PARTS
The reserved variable *PARTS holds a comma separated list of parts. It is set prior to 
defining a recipient with the “RCPT TO:” and determines which of the “XPRT n” 
message body blocks a given user will receive.
*DATE
The reserved variable *DATE is replaced with the current date stamp. 
*DK
The reserved variable 
*DK
 is used to specify a DomainKeys Signing profile (this 
profile must already exist in AsyncOS). For more information about creating 
DomainKeys Signing profiles, see the “Email Authentication” chapter in Cisco 
IronPort AsyncOS for Email Advanced Configuration Guide
.