user bouncing this list:

From: grarpamp <>
Date: Tue, 01 Jun 2021 23:24:39 UTC
Some recipient address on hubs (or clusteradm) is
ending up at a helpdesk automaton instead
of the MTA or user bouncing them as 404, AFK, etc.
No body or header indicates which address is at fault.

Can list admin please test and remove the offending
address, it probably ends in '' Thanks.