Making an e-mail alias means setting up an email address which shares the exact same mailbox with a completely different e-mail address for both the inbound and the outgoing e-mail messages. For example, you are able to make an email address firstname.lastname@example.org and it will be connected to a unique mailbox. Next, you can create an alias email@example.com, which will make use of the mailbox of sales@ and won't use a mailbox of its own. Every time you look at your e-mails, you'll see email messages sent to either one of the two email addresses in a single place, which may be more convenient in some cases as you will not need to log in and out of numerous email addresses working with webmail or configure numerous email addresses inside an email application. This option is frequently used as a substitute for forwarding emails from a single address to another one if numerous addresses are listed for contact on a web site.