Though doing so might reveal something, I think
inspecting the various logs (LISTSERV, SMTP) would isolate more
quickly. If that doesn't reveal a problem, start looking at the
remote mail server(s) esp. if MX hosts are involved.
On 10/18/2018 18:17, Marshall, Clinton
C wrote:
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If possible - duplicate the List put yourself and one other person from the List that did not receive the message as subscribers - test and see if you receive it,