I don't think this is possible. I'm sure the answer will be the same as what I received regarding having the sender be alerted that their email was not processed into an open ticket because they were not a requester/participant: "in the event of multiple spam accounts start sending e-mails to it, your server would be overloaded and that could cause severe performance problems".
So in both of our cases, someone sends an email expecting us to receive it and be able to respond, but instead, Service Desk skips the email and doesn't notify anyone. So we end up with an upset customer.
...be more productive while being fun to use at the same time. For some, getting started can be a bit intimidating. This is especially true if Jira Service Desk is your first exposure to Atlassian...
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