This is the mail system at host mailout08.t-online.de.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<***@aol.com>: host mx-aol.mail.gm0.yahoodns.net[67.195.228.84] said: 421
    4.7.0 [TSS04] Messages from 194.25.134.20 temporarily deferred due to user
    complaints - 4.16.55.1; see
    https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM
    command)

Reporting-MTA: dns; mailout08.t-online.de
X-Postfix-Queue-ID: C6B7D41186FC
X-Postfix-Sender: rfc822; Holger_****@t-online.de
Arrival-Date: Fri, 29 May 2020 00:25:31 +0200 (CEST)

Final-Recipient: rfc822; ***@aol.com
Original-Recipient: rfc822;***@aol.com
Action: failed
Status: 4.7.0
Remote-MTA: dns; mx-aol.mail.gm0.yahoodns.net
Diagnostic-Code: smtp; 421 4.7.0 [TSS04] Messages from 194.25.134.20
    temporarily deferred due to user complaints - 4.16.55.1; see
    https://help.yahoo.com/kb/postmaster/SLN3434.html

his is the mail system at host mailout00.t-online.de.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<TOI-FWD-Kundenservice@osp.telekom.de>: host
    mailin23.telekom.de[194.25.225.141] said: 550 #5.1.0 Address rejected. (in
    reply to RCPT TO command)

Reporting-MTA: dns; mailout00.t-online.de
X-Postfix-Queue-ID: A19424198201
X-Postfix-Sender: rfc822; Holger_****@t-online.de
Arrival-Date: Tue,  2 Jun 2020 15:01:19 +0200 (CEST)

Final-Recipient: rfc822; TOI-FWD-Kundenservice@osp.telekom.de
Original-Recipient: rfc822;TOI-FWD-Kundenservice@osp.telekom.de
Action: failed
Status: 5.0.0
Remote-MTA: dns; mailin23.telekom.de
Diagnostic-Code: smtp; 550 #5.1.0 Address rejected.

Return-Path: <Holger_****@t-online.de>
Received: from fwd29.aul.t-online.de (fwd29.aul.t-online.de [172.20.26.134])
	by mailout00.t-online.de (Postfix) with SMTP id A19424198201
	for <TOI-FWD-Kundenservice@osp.telekom.de>; Tue,  2 Jun 2020 15:01:19 +0200 (CEST)
Received: from [192.168.178.24] (bN6vYGZaohULtgjNcAEYr6Ri6THCdSn3hNxyeXgtbub7qOik7XdjSURoA88eu68Ziz@[89.183.59.235]) by fwd29.t-online.de
	with (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384 encrypted)
	esmtp id 1jg6Xf-4YPVB20; Tue, 2 Jun 2020 15:01:19 +0200
Subject: Fwd: Undelivered Mail Returned to Sender
References: <20200601225020.574AE4112448@mailout08.t-online.de>
To: kundenservice@t-online.de
From: Holger **** <Holger_****@t-online.de>
X-Forwarded-Message-Id: <20200601225020.574AE4112448@mailout08.t-online.de>
Message-ID: <9127abc3-6c02-e76e-a30d-13652d534dc6@t-online.de>
Date: Tue, 2 Jun 2020 15:01:13 +0200
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:68.0) Gecko/20100101
 Thunderbird/68.8.1
MIME-Version: 1.0
In-Reply-To: <20200601225020.574AE4112448@mailout08.t-online.de>
Content-Type: multipart/mixed;
 boundary="------------16EBD7DD38EB68C5B87AB7D0"
X-ID: bN6vYGZaohULtgjNcAEYr6Ri6THCdSn3hNxyeXgtbub7qOik7XdjSURoA88eu68Ziz
X-TOI-EXPURGATEID: 150726::1591102879-0000FF93-6E4529D4/0/0 CLEAN NORMAL
X-TOI-MSGID: a715d41f-87a6-44d9-82f0-429c81d2b6d7
X-ID: ThKPguZFZhiT6CsD7mjEy8Jv9qOPO32Q2kRkF3+qWQOtQMqKt5Fj8XQQ7-cg2o8ZVX
X-forwarded-for: kundenservice@t-online.de