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Thursday, June 6, 2024

How to view message source in Outlook online for 2024

Checking that your email is not spam or contains bad links and malware? Here's how to check an email in full details by look at the email/message source. Well what is that? 

The message source which is the email in full details and includes both plain text and raw HTML of the message. Most importantly includes headers, while the message body is the content you see when you open an email normally.

An email header or an internet header is metadata that accompanies every email and contains detailed information, such as the sender, receiver, route, timestamp, and more. Mailbox and email service providers use email headers to authenticate the email senders and properly allocate an email in the inbox.

As of June 6, 2024 aka 'D-Day' here's how to view email/message source in Outlook.com.

Choose your email message and select ...



Partial view of message source, as we can see if comes from apple.com.

Received: from SA1P223MB0837.NAMP223.PROD.OUTLOOK.COM (2603:10b6:806:3d2::22)
 by PH7P223MB0552.NAMP223.PROD.OUTLOOK.COM with HTTPS; Thu, 6 Jun 2024
 15:59:12 +0000
Received: from MN2PR03CA0001.namprd03.prod.outlook.com (2603:10b6:208:23a::6)
 by SA1P223MB0837.NAMP223.PROD.OUTLOOK.COM (2603:10b6:806:3d2::22) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7633.31; Thu, 6 Jun
 2024 15:59:10 +0000
Received: from BL6PEPF0001AB59.namprd02.prod.outlook.com
 (2603:10b6:208:23a:cafe::da) by MN2PR03CA0001.outlook.office365.com
 (2603:10b6:208:23a::6) with Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7656.20 via Frontend
 Transport; Thu, 6 Jun 2024 15:59:09 +0000
Authentication-Results: spf=pass (sender IP is 17.32.227.229)
 smtp.mailfrom=insideapple.apple.com; dkim=pass (signature was verified)
 header.d=insideapple.apple.com;dmarc=pass action=none
 header.from=insideapple.apple.com;compauth=pass reason=100
Received-SPF: Pass (protection.outlook.com: domain of insideapple.apple.com
 designates 17.32.227.229 as permitted sender)
 receiver=protection.outlook.com; client-ip=17.32.227.229;
 helo=mdn-epsmtap-mkt-lsndr13104.apple.com; pr=C
Received: from mdn-epsmtap-mkt-lsndr13104.apple.com (17.32.227.229) by
 BL6PEPF0001AB59.mail.protection.outlook.com (10.167.241.11) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7633.15 via Frontend Transport; Thu, 6 Jun 2024 15:59:09 +0000
X-IncomingTopHeaderMarker:
 OriginalChecksum:94387A27F04720CF321ECD265C181A297D3210A285393BFAA7EB899EC1759C27;UpperCasedChecksum:A14A6126655DC5C27D9ED33C81DFA770C8753A0E5A3FD9E3B1EE7F07E60FA12E;SizeAsReceived:2367;Count:21
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=insideapple.apple.com; s=insideapple0517; t=1717689547;
	bh=1+EjR6ZAex/Guwo1GedJJucGEHnV4aI2xtMWisDmhqk=;
	h=Date:From:To:Message-ID:Subject:Content-Type:
	 List-Unsubscribe-Post:List-Unsubscribe;
	b=157YrtTKcegFIlEDF56ph/MrP9dfgvz5DJICNodIuuLq2vVv09GABiKCJ5LoKop2R
	 rWF09IOs/nJvbFyzzDpVdXgymm4eB3jrvOHI43UPrW6oeF/ZcCb9Htu9pCs4ZGrI+M
	 Vv4W11TYjEzoapw+81Rk5SO3doU+U3OlJPsh32u+eIykFRAGksYvc4zpMtVTDKIg/O
	 leeDNm5ENIRiZw7AwnC9P+AQq8jXVzMpU+FrDnX+Hm1EvhCQcKWESZRToFfhJTe6KS
	 ky7dImlt/fdI2y9GMdt7IEue7DIA70dwF7AcU5MJAfJcqtts3DZ+dZRE/y47AZsRXm
	 mmb3UWAvzyoPQ==


etc...

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