wondering if I configured sieve vacation correctly

[Marc]

I have a user who feels compelled to use the vacation as autoreply to confirm that a message has been received. The down side is of course, that if spam/abuse messages get through the spam filters, this can get 'messy'. 

Currently I am getting these ndr's as postmaster(?). But I was not actually expecting this. I would expect that the mailbox with the autoreply would get this report. 

The vacation is configured like this[1], my question is. What am I doing wrong that this ndr is not ending up in the users mailbox? Can it be the from is not correctly configured/set at the time the vacation message is being sent?


[1]
require ["vacation"];
# rule:[cccccccccc]
if true
{
        vacation :addresses "test at test.com" :from "test at test.com" text:
dddddddddddddd
}

[2]
Return-Path: <>
Received: from aaaaa (localhost [127.0.0.1])
	by aaaaa (8.14.7/8.14.7) with ESMTP id 21BDgaPj014029
	(version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO)
	for <postyk at hm.edu>; Fri, 11 Feb 2022 14:42:36 +0100
Received: (from root at localhost)
	by aaaaa (8.14.7/8.14.7/Submit) id 21BDgamD014028
	for postyk at hm.edu; Fri, 11 Feb 2022 14:42:36 +0100
X-Sieve: Pigeonhole Sieve 0.4.24 (124e06aa)
Message-ID: <dovecot-sieve-1644586956-19320-0 at bbbb>
Date: Fri, 11 Feb 2022 14:42:36 +0100
From: test at test.com
To: <postyk at hm.edu>