Making an email alias means setting up an e-mail address which shares the same mailbox as a different address both for the inbound as well as the outbound e-mail messages. For instance, you’re able to create an address firstname.lastname@example.org and it'll be connected to a unique mailbox. Then, you can create an alias email@example.com, that can make use of the mailbox of sales@ and will not use a mailbox of its own. Every time you check your emails, you will notice emails sent to either one of the two email addresses in a single place, which might be far more convenient in some cases since you will not need to sign in and out of various email addresses using webmail or configure various addresses in an email application. This option can be used as a replacement for forwarding e-mail messages from a single address to a different one if multiple email addresses are included for contact on a web site.