--On Wednesday, June 23, 2021 10:54 PM -0400 H <agents@xxxxxxxxxxxxxx>
wrote:
Viewing /var/log/maillog I get some information but cannot see which
application generated that e-mail, nor the content of it which would
likely allow me to see where it comes from.
Can anyone suggest how to track down the app so I can reconfigure the
mail address?
Hold all delivery so you can examine the mystery message in the queue. I
found this article on how to hold mail with Postfix:
<https://serverfault.com/questions/92981/how-do-i-temporarily-suspend-mail-delivery-to-a-specific-domain-non-local-with>
This requires creating the file /etc/postfix/hold with a static hold rule
and "compiling" it with the postmap command. Add a line to main.cf to use
the new map.
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