This page can be used to setup a mailbox cleanup policy that applies to some or all virtual servers on your system. Unlike the per-domain spam and virus folder cleanup settings, the policy set here applies to all folders of all users in each chosen domain - including the inbox.

Message deletion can be based either on a time threshold, or a maximum mailbox size. Deletion based on message age is an easy way to setup a retention policy to limit the maximum age of stored messages. However, email already downloaded to users' mail clients (such as Outlook and Thunderbird) will not be removed.