- Click the Storage Limits box (Figure C).
- Within the Storage Limits section of the resulting Storage Limits dialog box, uncheck the Use Mailbox Store Defaults checkbox.
- Specify the values you wish to use warnings, prohibit sending new mail and prohibit sending and receiving mail. Note all values are entered in kilobytes (enter 307200 KB to set a limit of 300 MB).
Figure C |
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| Uncheck the Use Mailbox Store Defaults checkbox and specify warning limits and send stops in kilobytes. |
- Click OK.
Change the default mailbox limit for all users
You can also configure mailbox limits for all users at once. The actual mailbox limit
is specified within the Mailbox Store (Figure
D). To change the default mailbox limit for all users, follow these steps:
- Log on to the SBS 2003 server as a member of the Domain Admins group.
- Open Server Management from the Start menu or using a desktop icon.
- Expand the Advanced Management section.
- Navigate to First Organization (Exchange); note the name will change when you select it to reflect the name of the default Exchange organization.
- Expand the Servers entry.
- Select the SBS 2003 server powering the Exchange services.
- Expand the First Storage Group entry.
- Right-click Mailbox Store (Server Name) and select Properties.
Figure D |
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| Navigate to the Mailbox Store within the Server Management console, right-click it, and select Properties to access default settings for mailbox size limits. |





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Is the 16 GB Exchange mailbox store limit in regards to the individual user (total mailbox size)? Or does that apply to the total mailbox store size for the server and all users.