I am having trouble getting my Autosort to work. It seems that the jobs come in form the user interface assigned to a current project, because the projects allow public submisison. Is best practices to allow submission only to the Inbox, and then sort them by project from there?\
Sorry, Autosort does not apply to cases created via public case submission, but only to emails sent in. Cases created via public case submission allow the public user to specify the area they are filing a case for. Since Autosort primarily chooses an area, the functionality is overridden by the user choosing an area in public case submission.
Public case submission works best when it's behind a firewall (ironically) so that non-FogBugz users in your company can enter cases. If you are getting spammed in your public case submission form, we recommend switching over to a sendmail form that sends an email to your FogBugz mailbox.