Email account storage space
Each email account on your community website's domain uses a certain amount of storage space. As you create more email accounts, and as those email accounts receive emails, the storage space usage will increase. You can see the storage space usage for individual email accounts in the "Usage" column (shown below). The storage space usage counts toward a maximum limit we set for the whole community. The progress bar beneath the list of email accounts (shown below) will indicate how much of the available storage space that's been used.