What is the Pending Confirmation list and how can I use it to prevent Spam tickets from being created?

There is a Ticket Setting you can turn on that will require a ticket submitter/requester to confirm a ticket that they have submitted is valid (submitted either through the HelpCenter or by email) by responding to the confirmation email they receive after creating a new ticket.  This setting can help catch spam emails and prevent them from becoming new tickets, and prevents Users/contacts from creating spam tickets as a nuisance.

To enable ticket Confirmation by channel, you will navigate to your  Admin Settings > Tickets > Settings. In the "Anonymous user security settings" section, you may toggle “Web channel: confirmation”, “Email channel: confirmation”, or “Web & Email channel: confirmation”:

When Confirmation is turned ON for any of these channels, the ticket submitter/requester is required to confirm their ticket, meaning their ticket will not be created automatically in the helpdesk. Rather these tickets will stay in the Unassigned Pending Confirmation List until they are confirmed by the user, or approved and confirmed by an Agent/Admin on the helpdesk.

Alternatively, Agents can check view and confirm these tickets internally. Go to Admin Settings > Pending Confirmation. Here you will find a list of tickets waiting to be confirmed. Note it is recommended that admins go through the pending list regularly to confirm any legitimate tickets.

This is one of the many ways Mojo can prevent spam tickets from being created in your helpdesk.