You can adjust the size of your email mailbox at any time. This is useful if your mailbox is almost full or if you permanently need more storage space for your emails.
Log in to CloudPit. Select the desired web hosting package and click on Manage (1).
Alternatively, you can switch to the web hosting management via MORE (2) → Open Management.

Open Emails (3) → Email Addresses (4) in the left menu.
Click on Edit Email Address (5) for the desired email address.

Change the desired mailbox size in the Email Storage Space section.
Save the change.
Log in to the Controlpanel and open Web Hosting (1).
Then select Email Mailboxes (2).
Click on Edit Email Mailbox (3) for the desired mailbox.

Change the desired mailbox size in the Mailbox Size section.
Save the change.