Shared mailboxes are valid for a maximum of two years at a time. Big part of mailboxes is about to expire at 04.08.2016. Each mailbox has one or more owners, which the system will send an email under the title: “HALKO–IdM. Shared Mailbox Termination reminder” The e-mail has a link to a form in which the validity of the mailbox can continue. If the mailbox owner does not do anything MAILBOX AND ALL THE MESSAGES WILL BE DELETED at expiration date.