When a user posts a comment in JIRA, an equivalent account is created in Freshdesk with his JIRA email and the note is added to the ticket. If this user has hidden his email ID in his JIRA settings, the JIRA integration in your Helpdesk will not be able to fetch it, so a generic one will be used. The user visibility in JIRA , of the user whose name is shown as your name in Freshdesk should be set as public. Navigate to Jira home > Settings > System > General configuration (inside JIRA).