Your email accounts included with the purchase of the domain are not cumulative, for example, if you buy two additional email accounts, instead of having 4 email accounts, you will be adding additional space to your 2 free accounts (from 100 MB to 5 G ). To acquire more corporate email accounts, you need to buy the 2 accounts you currently have (2) plus the accounts you wish to acquire.
Hosting packages include email accounts that are not cumulative with the accounts included in the domain registration.
