This article will illustrate how to change the mailbox quota of a mailbox using Exchange Services. Here are a few things you should know before continuing.

**Please Note: Depending on the access type of that mailbox, quota additions WILL be billable to your account. Once the changes are submitted, it will take up to two hours for the mailbox to increase or decrease its quota.

As the reseller, you can set exchange mailbox permissions on behalf of your customer. Please review the steps below to add or change exchange mailbox permissions using the partner control panel.

1. Navigating to your Control Panel URL or and sign in using your administrative credentials.

2. Once logged in, Select Customer List / Editor, beneath My Customers, to show your available customers.

3. Highlight the customer the user assigned permissions needed to be added to, and click Login as Customer at the top of the Customer List.

4. Now that you are logged in as the customer, navigate to the User List under My users.

5. From the User List, choose the mailbox you need to assign another user access rights to and click on Edit User.

5. Under the Microsoft Exchange service tab, select Access Settings. Here you will see the Mailbox Size drop-down. You will have options to manually increase the available mailbox quota limit to either 1,5, 10, 15, 25, 75, or 100GBs. Once you have selected the desired quota, select Save Changes.