What is the difference between an email address and an email account?
An email account can be compared with a mail box. Post (email) can be delivered to it, and thus you get it and may read it. It is possible to have several email addresses that all points to the same email account, e.g. email@example.com and firstname.lastname@example.org pointing to the email account example1. Emails sent to these email addresses will thus be delivered in the same "mail box". At Domainnameshop you can create an unlimited number of email addresses, but a limited number of email accounts. As a thumb rule, you will need one email account per person.