Okay. I see. But I already have an extension for sending email: WP Mail. Also, be aware that the customer does not receive confirmation of his new ticket, but the support agents, yes. And the conditions are the same.
I went back to version 1.1.5 to customize my installation again. I will also apply your recommendations then, try a new update to 2.0.5. And I will see.
I will gather information about my installation to make a support request soon.
