I noticed that when creating new tickets for customers that it properly gets sent out via the configured email name for the department email (in Admin Panel -> Emails ->Email Information and Settings -> Email Name). However, subsequent replies are sent out via the department name and ignore the configured email name.
I am using osTicket Awesome 1.15.2. This is not affected by a webpage but shows itself in the outbound email (in fact, the Ticket Panel in the reply shows the proper email name in the “Post Reply” tab. I have not been able to make this go away, save for the initial email sent to the customer when an agent creates a ticket.