Unable to Configure "From"/sender's name in outgoing notifications

Issue Summary

In instances of Jira Service Management that do not have Jira Software installed, there is no way in the UI to configure the outgoing email From/sender field

Steps to Reproduce

In an instance of JSM that does not have Jira Software installed, follow the steps in How to Change the Sender's Name of the Service Management Notifications

Expected Results

The "From"/sender field of the outgoing notifications would change to the name of the Service Management Customer Portal

Actual Results

This setting is ignored and instead displays "<username>(Jira) <outgoing email address> " on outgoing notifications, where <username> is the username of the user that enacted the change

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available

Versions Tested

Please confirm all versions that have been tested for this issue, and indicate whether the tested version is affected or not affected, below: