Making an email alias means making an e-mail which shares the exact same mailbox with a different e-mail address for both the incoming as well as the outgoing messages. For instance, you can create an email address email@example.com and it will be linked to its very own mailbox. Next, you can make an alias firstname.lastname@example.org, that can make use of the mailbox of sales@ and will not have a mailbox of its own. If you look at your emails, you will notice emails sent to both of the two email addresses in one place, which may be far more convenient in some instances because you will not need to log in and out of numerous email addresses using webmail or set up numerous addresses inside an email program. This option is usually used as an alternative choice to forwarding e-mail messages from a single e-mail address to another one if numerous email addresses are mentioned for contact on a site.