What are e-mail aliases?

Aliases are different names for the same mailbox. Answer:

For example: You run a one-person business, but you want your website to make it look as if your company is much larger, with several departments. You can use e-mail addresses like sales@yourbusiness.com , info@yourbusiness.com , and tech@yourbusiness.com which will all point to one mailbox. In this way, it makes your company look as if there are several people behind it, running different areas, when in actuality each alias simply points to one mailbox.

Each of cpwebhosting.net hosting plans allow you to set up a specific number of aliases for free.