I propose to use the reply-to-address from the incoming Emails (maileater) for the outgoing Emails for "Send-to-Address" in "creating a ticket via Email"-Process.
Why this adjustment is useful: Our customers mustn’t be informed about result of "creating a ticket via Email". But our Customer-Service-Team needs to be informed (in case of success or failure). One Step before Maileater works, we set the reply-to-address in the incoming Email on our customer service-team which should be informed.
At the Moment the reply to-address in Mailbox-Configuration is available only for the outgoing notification – what is no solution for our Problem. So our current Problem-Solution requires different notification-methods for different mailbox-rules (for each different Customer-Service-Team as Recipient).