Server wide mail list to all mailboxes You can use Server mail lists to send a message to all mailboxes on your site (or in a particular domain). To establish a mail list that allows you to broadcast messages to all users at your site, create a Server mail list. These mail lists take their membership from the mailboxes on the system. To specify the mailboxes included in a server list, double-click the mail list in the MailSite Console and move to the Mailboxes page of the Mail List Properties window. The 'all mailboxes matching' field allows you to enter a naming pattern for mailboxes that should receive mail to the list; to include all users, enter a wildcard (*) character. You can then specify that the list should include users in a particular local domain, or in all domains (*). Note that Server lists provide an easy way for anyone to send email to all of your users. Depending on your site, this may represent a significant security risk (for instance, the possibility of junk mail being sent through the list to all of your subscribers). For this reason it is recommended that you restrict posting to moderators or, more securely, disable the list when not being used.