This question is in reference to Atlassian Documentation: Creating issues and comments from email
So in my understanding the email handler is "one way", right? users who submitted cannot inspect (or edit, comment) their submitted issues?
If the emails are coming from users without a JIRA account, then yes. They won't be able to view what they submitted.
That's assuming you don't allow anonymous access to your JIRA projects.
If the emails come from users with JIRA accounts, then it will depend on the permissions granted to them.
Adding to what Sam said:
If you add the users as customers, they do not "take up a space" in your license. So if you do not want a public helpdesk, why not just add people as customers?
This allows them to see their ticket-state and does not impact the use of the email-handler.
Does the creation of tickets via mail work if you have nor made it public? Or are the users submitting mails customers in Jira?
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