Mailbox properties - Limits tab

This tab applies to mailboxes only. It allows you to set the storage quota for the object's mailbox, such as an Exchange mailbox.

Use default storage quota

Select this check box to use the default quota for the mailbox store instead of defining it individually.

Issue warning (K)

The mailbox size in kilobytes (KB) for this user, that, when exceeded, triggers an over-limit warning. However, the user can still send and receive messages.

Prohibit Send (K)

The maximum mailbox size in kilobytes (KB) for this user, that, when exceeded, suspends the user's ability to send emails.

Prohibit Send/Receive (K)

The maximum mailbox size, in kilobytes (KB) for this user, that, when exceeded, suspends the user's ability to both send and receive emails.