Wietse Venema wrote:
Instead of speculating that "Postfix does not allow bounces to come back", all the evidence you need is in the logfile. Postfix logs ALL mail delivery attempts, including the attempts that fail.
"Bounces" normally have an "empty" envelope sender address which should be logged as
from=<> Masao, maybe this helps you to find significant entries in your logs. Regards and Happy Easter, wolfgang
