We connected our network monitoring system to Jira (Jira SD next-gen) via email. The monitoring system only reporting issues to the Jira and don't accept emails from Jira (one-way communication). The system receives emails with both new problems and state changes (increasing, decreasing priority, or issue-resolving). Both types of emails have the same email subject, which reflects on which network area the problem occurred/was fixed.
Here is the problem: Jira opens a new issue for each email from the monitoring system, but does not add comments to those already open. But if the same email comes from my test email, then the system makes comments.
I assume the problem is in Mail Handler settings, how it should be configured? One email handler is now configured - Cloud Email Handler? What are the recommendations for setting it up?