E-mail hosting services usually offer premium e-mail at a cost as opposed to advertising supported free e-mail or free webmail. E-mail hosting services thus differ from typical end-user e-mail providers such as webmail sites.
They cater mostly to demanding e-mail users and Small and Mid Size (SME) businesses, while larger enterprises usually run their own e-mail hosting service. E-mail hosting providers allow for premium e-mail services along with custom configurations and large number of accounts.
In addition, hosting providers manage user's own domain name, including any e-mail authentication scheme that the domain owner wishes to enforce in order to convey the meaning that using a specific domain name identifies and qualifies e-mail senders