"Copies To" field is unobviously ignored for queues without "Notify contacts when email updates arrive" set

[koriaf]

This behaviour is confusing because people still adding CC users and may be surprised why emails don't arrive to them.

A proposed solution is just to hide that field if the queue has it turned off anyway. I don't think it's worth adding much checks around it and just don't render it will be fine.

Another alternative is to make it readonly with a popover describing why it can't be changed.

Please say your thoughts about that; the functionality is pretty simple to implement.

[Benbb96]

IMO, second alternative is better because the user won't have to search for this field if we were to make it hidden, and he will understand why it is read-only thanks to the popover.

[gwasser]

The read-only idea sounds reasonable to me.