Plesk: Increase Mailbox Quota

This article describes how to increase the mailbox quota in a hosting account. By default, the mailbox quota is set to 100 GB, which can be individually adjusted to vary the storage space for each mailbox. For resellers, there are special instructions for increasing the maximum mailbox quota, either by adjusting the service package or the subscription. If problems occur when increasing the quota, an online help article is referenced.

Increase Mailbox Quota
Increase Maximum Mailbox Quota (Resellers)

Increase Mailbox Quota

Note The mailbox quota is the storage space allocated to each individual mailbox. If the mailbox quota is exceeded, emails can neither be sent nor received.

Your account has a default value of 100 GB set for the mailbox quota. You can see this in Plesk under Email > General:

Within the 100 GB, you can freely vary the storage size assigned to each mailbox.
If you experience problems increasing the mailbox quota, please refer to the following online help article: Error when Increasing Mailbox Quota

Increase Maximum Mailbox Quota (Resellers)

Attention: These instructions apply only to reseller hosting.

Adjust in Service Package
Adjust in Subscription

Adjust in Service Package

Select the menu item “Service Packages”:

1. Click on the desired “Service Package.”

2. Set the desired value under “Mailbox Size”:
   

3. Adjust in Subscription

4. Select the menu item Subscriptions:

   

5. Click on the desired subscription.

6. In the right column under “Account,” select the menu item "Customize".

7. Set the desired value under “Mailbox Size”: