[exim] unseen redirect router generates DSN

I have an unseen redirect router, it's producing DSN responses,
the sender also gets the DSN from the main delivery.
is that intentional?

DSN response eg:

<jasen@???> (relayed via non "Remote SMTP" router)
[...]
Action: delivered
Final-Recipient: rfc822;jasen@???
Status: 2.0.0
Diagnostic-Code: X-Exim; relayed via non SMTP router



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