How to set mail Box size in plesk
Go to your Plesk login page and enter your username and password.

- Select the Domain.
◦ From the left sidebar, click on domains
◦ Choose the Domain where the email account is hosted
- Access Mail Settings.
◦ Click on Mail under the selected domain.
- Choose the Email Account.
◦ You’ll see a list of email accounts.
◦ Click on the one you want to edit.

- Edit Mailbox Size.
◦ Find the field labeled mailbox size.
◦ Enter the desired size in MB.
◦ To make it unlimited, uncheck the box for Mailbox Size Limit.
- Save changes.
◦ click ok or Apply to save your settings.
