IronPort - advanced configuration guide

Chapter 2 Configuring Routing and Delivery Features
Sample Masquerading Table for a Private Listener
Importing a Masquerading Table
Example Masquerading
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# sample Masquerading file
@.example.com @example.com # Hides local subdomains in the header
sales sales_team@success.com
@techsupport tech_support@biggie.com
user@localdomain user@company.com
ALL @bigsender.com
A traditional sendmail /etc/mail/genericstable file can be imported. To import a genericstable file,
first see Appendix B, “Accessing the Appliance” to ensure that you can access the appliance.
Place the genericstable file in the configuration directory, and then use the import subcommand of the
masquerade subcommand to upload the file. Use the commands in this order:
listenerconfig -> edit -> injector_number -> masquerade -> import
Alternatively, you can use the export subcommand to download the existing configuration. A file
(whose name you specify) will be written to the configuration directory. You can modify this file outside
of the CLI and then import it again.
When you use the import subcommand, ensure that the file contains only valid entries. If there is an
invalid entry (for example, a left-hand side with no right-hand side), the CLI reports syntax errors when
you import the file. If there is a syntax error during import, no mappings in the entire file are imported.
Remember to issue the commit command after you import a genericstable file so that the configuration
changes for the listener take effect.
In this example, the masquerade subcommand of listenerconfig is used to construct a domain
masquerading table for the private listener named “OutboundMail” on the PrivateNet interface.
First, the option to use LDAP for masquerading is declined. (For information on configuring LDAP
masquerading queries, see See Chapter 3, “LDAP Queries” for more information on LDAP
masquerading queries.)
Then, a partial domain notation of @.example.com is mapped to @example.com so that any email sent
from any machine in the subdomain of .example.com will be mapped to example.com. Then, the
username joe is mapped to the domain joe@example.com. The domain masquerading table is then
printed to confirm both entries, and then exported to a file named masquerade.txt. The config
subcommand is used to disable re-writing addresses in the CC: field, and finally, the changes are
committed.
mail3.example.com> listenerconfig
Currently configured listeners:
Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
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