Making an e-mail alias means setting up an e-mail address that shares the very same mailbox as a different e-mail address for both the inbound and the outbound e-mail messages. For example, you’re able to create an e-mail address firstname.lastname@example.org and it'll be associated with a unique mailbox. Then, you can make an alias email@example.com, that can use the mailbox of sales@ and won't have a mailbox of its own. If you look at your email messages, you will see emails sent to both of the two addresses in one place, which might be far more convenient in some circumstances as you will not have to sign in and out of different mailboxes working with webmail or configure numerous addresses inside an email program. This option is commonly used as a substitute for forwarding messages from a single address to a new one if multiple addresses are mentioned for contact on a site.