Enable follow-up tickets for side-conversation emails

Feature Request Summary:

Please enable Zendesk to automatically create follow-up tickets if a response is received for a side-conversation email, if the original parent ticket is closed.

Those follow-ups should be clearly classified, and assigned to last assignee of the original parent ticket.

Description/Use Cases:

Scenario: A side-conversation email is sent and the parent ticket closed. The email is then replied to, but a 'follow-up' ticket is not generated. We as a business cannot see any response that has been sent.

As per https://support.zendesk.com/hc/en-us/articles/4408837750170-Understanding-follow-up-tickets-for-side-conversations, and the response logged.

Business impact of limitation or missing feature:

This is critical for our business to know what responses we get from side-conversation emails

Other necessary information or resources:

See https://support.zendesk.com/hc/en-us/articles/4408837750170-Understanding-follow-up-tickets-for-side-conversations