Using a Catch-All
A catch-all alias can be established that can receive all incoming email that goes
to invalid email addresses within your domain. You may want to do this, for example,
if customers frequently send to accounts that do not really exist. In general, however,
use of a catch-all alias is not recommended, as it makes you more prone to harvesting
attacks.
To set a catch-all alias, first create an alias
in your domain to be the catch-all. Then go to the
Email Aliases page and choose Set Catch-All. Choose the alias you
wish to use as the catch-all, and click on Save.
Note: It is important to never set an auto-responder on an email account that the
catch-all forwards to, as it may result in spammers sending more email to your domain.
In addition, additional bandwidth usage will result. If you do not see the option
for adding a catch-all, please contact your system administrator as they may have
disabled the option.