I think this spammer got into the one classmate's account, and harvested his address book. That classmate told me he got messages from friends who weren't in our class (and he doesn't use Facebook, at least not for the class group), telling him about the suspicious emails. I don't know if any of them tried replying to his Comcast address and somehow had it diverted to the scammer's Hotmail address. That's what piqued my curiosity. I thought I was replying only to my classmate, but I got replied from him (via Comcast) and the scammer (via Hotmail).
From View entire message:
Received: from EUR06-AM7-obe.outbound.protection.outlook.com (mail-am7eur06olkn2084.outbound.protection.outlook.com. [40.92.16.84])
by mx.google.com with ESMTPS id eb8si4670623edb.511.2020.12.23.11.30.07
for <X>
(version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128);
Wed, 23 Dec 2020 11:30:08 -0800 (PST)
Received: from AM7EUR06FT033.eop-eur06.prod.protection.outlook.com (2a01:111:e400:fc36::53) by AM7EUR06HT254.eop-eur06.prod.protection.outlook.com (2a01:111:e400:fc36::326) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3676.22; Wed, 23 Dec 2020 19:30:07 +0000
Received: from AM7PR04MB6823.eurprd04.prod.outlook.com (2a01:111:e400:fc36::4b) by AM7EUR06FT033.mail.protection.outlook.com (2a01:111:e400:fc36::361) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.27 via Frontend Transport; Wed, 23 Dec 2020 19:30:07 +0000
Received: from AM7PR04MB6823.eurprd04.prod.outlook.com ([fe80::4917:f90a:8527:49bf]) by AM7PR04MB6823.eurprd04.prod.outlook.com ([fe80::4917:f90a:8527:49bf%6]) with mapi id 15.20.3700.026; Wed, 23 Dec 2020 19:30:07 +0000
From: [munged] <pbiibaud@outlook.com>
To: <X>
Subject: Re: Thinking of you fondly
Date: Wed, 23 Dec 2020 19:30:07 +0000
Message-ID: <AM7PR04MB6823A19886BDB753EDA17DC7DCDE0@AM7PR04MB6823.eurprd04.prod.outlook.com>
References: <1503941567.175629.1608646467954@connect.xfinity.com>,<CAL-d1+vxLO6C2aN1mpMg_toYX6ggngt8yx+jqhjQjAcYY_w9yg@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
Good to hear from you [munged], please can you help me get a gift card for my little niece. It's her birthday but i can't do this now because I'm out of town on vacation, I tried purchasing online but unfortunately had no luck with that. Can you please help me get it from any store around you or help purchase online? reimbursement is not a problem soon as i get back.
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And from Parsing Header:
Parsing header:
host 2a01:111:e400:fc36:0:0:0:53 (getting name) no name
host 2a01:111:e400:fc36:0:0:0:4b (getting name) no name
0: Received: from EUR06-AM7-obe.outbound.protection.outlook.com (mail-am7eur06olkn2084.outbound.protection.outlook.com. [40.92.16.84]) by mx.google.com with ESMTPS id eb8si4670623edb.511.2020.12.23.11.30.07 for <X> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Dec 2020 11:30:08 -0800 (PST)
Hostname verified: mail-am7eur06olkn2084.outbound.protection.outlook.com
Gmail/Postini received mail from sending system 40.92.16.84
1: Received: from AM7EUR06FT033.eop-eur06.prod.protection.outlook.com (2a01:111:e400:fc36::53) by AM7EUR06HT254.eop-eur06.prod.protection.outlook.com (2a01:111:e400:fc36::326) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3676.22; Wed, 23 Dec 2020 19:30:07 +0000
No unique hostname found for source: 2a01:111:e400:fc36:0:0:0:53
Trusted site protection.outlook.com received mail from 2a01:111:e400:fc36:0:0:0:53
2: Received: from AM7PR04MB6823.eurprd04.prod.outlook.com (2a01:111:e400:fc36::4b) by AM7EUR06FT033.mail.protection.outlook.com (2a01:111:e400:fc36::361) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.27 via Frontend Transport; Wed, 23 Dec 2020 19:30:07 +0000
No unique hostname found for source: 2a01:111:e400:fc36:0:0:0:4b
Possible forgery. Supposed receiving system not associated with any of your mailhosts
Will not trust this Received line.
Sender relay: 40.92.16.84
Routing details for 40.92.16.84 [refresh/show] Cached whois for 40.92.16.84 : abuse@microsoft.com
Using best contacts abuse@microsoft.com
Using rdns to route to correct Microsoft department
host 40.92.16.84 = mail-am7eur06olkn2084.outbound.protection.outlook.com (cached)
abuse net protection.outlook.com = abuse@messaging.microsoft.com
Tracking message source: 2a01:111:e400:fc36:0:0:0:53:
Routing details for 2a01:111:e400:fc36:0:0:0:53
Report routing for 2a01:111:e400:fc36:0:0:0:53: danorm@microsoft.com
danorm@microsoft.com redirects to report_spam@hotmail.com
Sorry, this email is too old to file a spam report. You must report spam within 2 days of receipt. This mail was received on Wed, 23 Dec 2020 19:30:07 +0000
Message is 5.5 days old
2a01:111:e400:fc36:0:0:0:53 not listed in cbl.abuseat.org
2a01:111:e400:fc36:0:0:0:53 not listed in dnsbl.sorbs.net
2a01:111:e400:fc36:0:0:0:53 not listed in accredit.habeas.com
2a01:111:e400:fc36:0:0:0:53 not listed in plus.bondedsender.org
2a01:111:e400:fc36:0:0:0:53 not listed in iadb.isipp.com
Finding links in message body
Parsing text part
no links found
Finding IP block owner:
Routing details for 2a01:111:e400:fc36:0:0:0:53
Report routing for 2a01:111:e400:fc36:0:0:0:53: danorm@microsoft.com
danorm@microsoft.com redirects to report_spam@hotmail.com
If reported today, reports would be sent to:
Re: 2a01:111:e400:fc36:0:0:0:53 (Administrator of IP block - statistics only) report_spam@hotmail.com
Re: 40.92.16.84 (Administrator interested in intermediary handling of spam) abuse@messaging.microsoft.com
############################################################################################################################
Side note: Reports were sent on 12/23, but the "too old" language appears to have been added since.