Cisco Cisco Email Security Appliance C190 Mode D'Emploi

Rules are matched by the order in which they appear in the masquerading 
table. 

Addresses in the From:, To:, and CC: fields in the headers are matched and 
rewritten upon receiving by default. You can also configure the option to 
match and rewrite the Envelope Sender. Enable and disable the Envelope 
Sender and which headers to rewrite using the 

config

 subcommand. 

You can comment out lines in the table using a number symbol (#) at the 
beginning of each line. Everything following a 

#

 to the end of the line will be 

considered a comment and ignored. 

A masquerading table is limited to 400,000 entries, whether you create them 
via the 

new

 subcommand or import them from a file. 

The entry specifies an exact address to match. Incoming messages matching a 
full address on the left-hand side are rewritten with the address listed on the 
right-hand side. The right-hand side must be a full address. 

This entry specifies any address with the specified domain. The original domain 
on the left-hand side is replaced with the domain in the right-hand side, leaving 
the username intact.

This entry specifies any address with the specified domain. The original domain 
on the left-hand side is replaced with the domain in the right-hand side, leaving 
the username intact.

ALL

The 

ALL

 entry matches bare addresses and rewrites them with the address on the 

right-hand side. The right-hand side must be a domain preceded by an “

@

”. This 

entry always has the lowest precedence regardless of its location in the table. 

You can use the 

ALL

 entry for private listeners only.