Block certain group of user from creating new issue via email handler

[Nicholas]

I am using the standard email handler. When a new email receive by the mail server, JIRA will either create new issue or comment onto the existing one.

The problem is, not only the customer but also the service desk team will be sending email to this mail server. Unwanted action such as creating new issue when receiving email from service desk team is performed by JIRA mail handler and when that happen, the service desk team will receive the notification mail stating that a new issue is create for them.

I have tried to remove the "Create Issue" access for the service desk team, but when I do, email from service desk team will no longer be commented even if the service desk team is replying the email from the customer with existing issue created by customer.

Is there a way to prevent the service desk team from creating new issue with them as reporter but at the same time still allow their mail to be processed so that if the service desk team is replying a customer email, then the email can be commented into the existing issue created by the customer?

Or is there a way to stop sending issue created notification email to the service desk team if issue is created by them? I have selected the notification scheme as "none" but JIRA will still send out notification email to the reporter when new issue is created, My guess is the email handler is performing this action? but I couldn't find a way configure it.