E-mail alias E-mail aliases are ‘apparent’ e-mail addresses that can be used to receive e-mail and redirect them to one or more ‘actual’ e-mail addresses. An example: E-mail messages to ‘sales@company.com’ can be redirected to ‘john@company.com’ and ‘maria@company.com’. In this case ‘sales’ is an alias for ‘john’ and ‘maria’.