I did not categorize this as a bug because of the toolip for the option "Send Auto-Response Emails for New Tickets ", which says:

Unchecking this box indicates that new tickets created for this department (by email or client) will not send a reply notice to the client or staff through the Ticket Received email or Staff Ticket Updated email, respectively.

I thought that if this were checked, clients opening a ticket would get the "We have received your ticket" email. However, if this isn't checked, staff who would normally get a notification will not get notified either. The ticket goes into a black hole in terms of notifications and can only be see in the UI. This is a problem in case where we do NOT want to send a confirmation to a client whos email may be spam, but we DO want to notify staff. An Abuse department is a good use case for this.

Has this option always worked this way? If so, I propose we add another option and rename this one.

For example, rename this one "Send Auto-Response Emails to Clients for New Tickets" and add a new one called "Send Auto-Response Emails to Staff for New Tickets". If the staff one is checked, staff get notified. If the client one is checked, the client gets notified. If both are checked, both get notified. If neither are checked, neither get notified.