How to edit the mailbox size for user Print

First of all , you need to access with the admin role 

To Access the Web Control Panel, you might have a few ways to do it. 

Access from the Client panel 

1. Login to the client panel (https://cp.runitspace.com)
2. In Client Area > Choose Service > Click any of your Email hosting services.
3. On the left-hand side Actions box > Click Log in to Webmail.
4. You will be redirected to the Smartermail Web Control Panel. 

Access directly to the webmail

1. You should upgrade the user account to an Admin role.  (How to Enable Domain Administrator Access for User). 
2. Browser https://mail.yourdomain .
3. Enter the Username and Password of the domain admin account.

Modify the user mailbox size 

1. Login to http://mail.yourdomain.com as admin@yourdomain.com

2. Click on 'Settings' --> 'Domain Settings' --> 'Users'

3. CHECK on the user and click Edit

    

4. Enter the required Mailbox Size Limit (10240 MB = 10GB)

5. Save