How to Edit Storage Space of a Mailbox

Each mailbox has a storage quota, which limits how much email it can store. If a mailbox is approaching its limit, you can easily increase or adjust the quota — or set it to unlimited if required.

This guide shows you how to update the storage space for a mailbox in your Email Control Panel.

🔐 Step 1: Access the Email Control Panel

If you're not already logged in, follow this guide:
👉 How to Access Your Email Control Panel

🧭 Step 2: Go to the Mailboxes Section

1. Click the Email tab in the left-hand menu

2. Click Mailboxes

✏️ Step 3: Select the Mailbox to Edit

1. Find the mailbox you want to change

2. Click the three dots (⋮) next to it

3. Choose Edit Storage Space from the dropdown

📦 Step 4: Update the Quota

1. Enter a new storage value in MB (e.g. 2048 for 2GB)

2. Or select Unlimited if you don’t want a cap

💾 Step 5: Save Your Changes

Click Update Size to apply the new quota settings.

Your mailbox will now have the updated limit applied immediately.

🧠 Why Adjust Quotas?

• Prevent delivery issues caused by full mailboxes

• Control storage usage across multiple users

• Allocate more space to users who need it