What is a Catch-all?

Some of the Namesco email and hosting packages give you the option to create a catch-all mailbox.

A catch-all mailbox is a mailbox on a domain that will “catch all” of the emails addressed to the domain that do not exist in the mail server.

For example if my domain is ‘testdomain.com’, a catch-all mailbox would allow me to send an email to the address,

{anything}@testdomain.com

Essentially can you can enter whatever you wish before the ‘@’ symbol and the mailbox will receive that email.