Outlook mail delivery failed on a message I did not send

I am using Outlook 2021 Pro.

The info on the message follows.  Note the user is email address removed for privacy reasons.  I would never communicate with anyone in Russia, so needless to say, I did not sent the email.

A message that you sent could not be delivered to one or more of its

recipients. This is a permanent error. The following address(es) failed:

  email address removed for privacy reasons

    Unrouteable address

------ This is a copy of the message, including all the headers. ------

Return-path: <email address removed for privacy reasons>

Received: from mail7.efind.ru ([178.250.153.55])

                by mail.efind.ru with esmtp (Exim 4.84_2)

                (envelope-from <email address removed for privacy reasons>)

                id 1sRsIH-0001mO-Et

                for email address removed for privacy reasons; Thu, 11 Jul 2024 14:49:01 +0300

Received: from mail7.efind.ru (localhost.localdomain [127.0.0.1])

                by mail7.efind.ru (Proxmox) with ESMTP id 5B80640B7F

                for <email address removed for privacy reasons>; Thu, 11 Jul 2024 14:49:00 +0300 (MSK)

Received-SPF: none (denneyworld.com: No applicable sender policy available) receiver=mail7.efind.ru; identity=mailfrom; envelope-from="email address removed for privacy reasons"; helo="[45.227.109.79]"; client-ip=45.227.109.79

Received: from [45.227.109.79] (unknown [45.227.109.79])

                by mail7.efind.ru (Proxmox) with ESMTP id 699E640AE1

                for <email address removed for privacy reasons>; Thu, 11 Jul 2024 14:48:55 +0300 (MSK)

From: "tobin isaac" <email address removed for privacy reasons>

To: <email address removed for privacy reasons>

Subject: no subject

Date: 11 Jul 2024 04:40:36 -0400

Message-ID: <001801dad36f$05b20285$67aa8bb4$@denneyworld.com>

MIME-Version: 1.0

Content-Type: multipart/alternative;

                boundary="----=_NextPart_000_0015_01DAD36F.05B10C55"

X-Mailer: Microsoft Outlook 16.0

Thread-Index: Acosc1tb78e2wvukosc1tb78e2wvuk==

Content-Language: en-us

X-SPAM-LEVEL: Spam detection results:  8

                BAYES_50                  0.8 Bayes spam probability is 40 to 60%

                DATE_IN_PAST_03_06      1.592 Date: is 3 to 6 hours before Received: date

                DMARC_MISSING             0.1 Missing DMARC policy

                DOS_OUTLOOK_TO_MX       2.845 Delivered direct to MX with Outlook headers

                HELO_MISC_IP            0.164 Looking for more Dynamic IP Relays

                HTML_MESSAGE            0.001 HTML included in message

                KAM_DMARC_STATUS         0.01 Test Rule for DKIM or SPF Failure with Strict Alignment

                KAM_LAZY_DOMAIN_SECURITY      1 Sending domain does not have any anti-forgery methods

                NO_FM_NAME_IP_HOSTN     0.001 No From name + hostname using IP address

                PDS_BAD_THREAD_QP_64    0.001 Bad thread header - short QP

                PDS_BTC_ID              0.001 FP reduced Bitcoin ID

                RATWARE_NO_RDNS         0.001 Suspicious MsgID and MIME boundary + no rDNS

                RCVD_IN_DNSWL_BLOCKED   0.001 ADMINISTRATOR NOTICE: The query to DNSWL was blocked.  See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information.

                RCVD_IN_HOSTKARMA_BL      1.5 Sender listed in HOSTKARMA-BLACK

                RCVD_IN_VALIDITY_CERTIFIED_BLOCKED  0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked.  See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information.

                RCVD_IN_VALIDITY_SAFE_BLOCKED  0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked.  See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information.

                RCVD_IN_ZEN_BLOCKED_OPENDNS  0.001 ADMINISTRATOR NOTICE: The query to zen.spamhaus.org was blocked due to usage of an open resolver. See https://www.spamhaus.org/returnc/pub/

                RDNS_NONE               0.793 Delivered to internal network by a host with no rDNS

                SPF_NONE                0.001 SPF: sender does not publish an SPF Record