Руководство Пользователя для Cisco Cisco Email Security Appliance C170

A domain masquerading table is constructed as follows:

The following table lists valid entries in the masquerading table:

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. 

a list of one or more usernames and/or 
domains to match 

whitespace (space or tab 
character)

the rewritten username and/or 
domain

username@domain

This entry specifies a username to match. Incoming email messages matching a username on the 
left-hand side are matched and rewritten with the address on the right-hand size. The right-hand side 
must be a full address. 

username@domain

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.