If your Primary Domain Administrator account is receiving email notifications that a user has exceeded their quota and is no longer able to receive email, you can adjust the quotas to allocate more space to the user whose mailbox is full (assuming you have free email disk space for your domain).
Note that SmarterMail will allow you to set user quotas that total more than the total physical disk space you have available to your domain. So when setting user quotas, make sure that you haven't exceeded the amount of email disk space allotted to your hosting plan.
Each hosting plan has a different email disk space limit:
See this Knowledge Base article for information on how to determine how much email disk space you have allotted to your domain's users.
If you would like to upgrade your plan to add more e-mail disk space to your account:
For information about the billing for plan upgrades, see this Knowledge Base article.
Trouble logging in? Simply enter your email address OR username in order to reset your password.
For faster and more reliable delivery, add email@example.com to your trusted senders list in your email software.