How to Check Email Headers Easily: 📧 For Outlook Users: Right-click the suspicious email. Select "View Source" or "View Message Details". Look for "From:" or "Return-Path:" in the header. Confirm the actual sender’s email address or domain carefully. 📧 For Gmail Users: Click the three-dot menu (⋮) at the top-right of the email. Choose "Show Original". Check the actual sender's email address under "From" or "Return-Path".

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Email headers are like the postal markings on a letter envelope. They show the actual path an email took to reach you, including the real sender information. While the displayed sender name can be easily faked, the header information reveals the true source. Learning to check these headers is essential for identifying phishing attempts and suspicious emails. For Outlook users, checking email headers is straightforward. First, right-click on the suspicious email in your inbox. This will open a context menu with several options. Look for and select either "View Source" or "View Message Details" depending on your Outlook version. This will open a new window showing the complete email header information. In this header data, carefully examine the "From" field and especially the "Return-Path" field, as these reveal the actual sender's email address, which may differ from what's displayed in the email. For Gmail users, the process is slightly different but equally effective. Start by opening the suspicious email in Gmail. Look for the three-dot menu icon, which appears as three vertical dots, located at the top-right corner of the email. Click on this menu to reveal a dropdown list of options. From this dropdown menu, select "Show Original". This will open a new tab or window displaying the complete raw email headers and source code. In this technical view, you can examine the "From" field and the "Return-Path" field to see the actual sender's email address, which may reveal if the email is fraudulent. When examining email headers, focus on several key fields. The "From" field shows the displayed sender address, while the "Return-Path" reveals the actual sending server. The "Received" fields trace the email's journey through various servers. Authentication results show whether the email passed security checks like SPF, DKIM, and DMARC. Major red flags include mismatched From and Return-Path addresses, suspicious domains in the server path, and failed authentication checks. A legitimate email from PayPal should have matching sender addresses and pass authentication, while a phishing email often shows mismatched addresses and failed security checks. In conclusion, checking email headers is a crucial skill for staying safe online. Always verify sender authenticity by examining the header information, especially when emails seem suspicious. Look for mismatched addresses between the From and Return-Path fields, and trust the authentication results. When in doubt, contact the sender directly through a known, trusted method. Remember that email header analysis is your first line of defense against phishing attacks. By taking these simple steps, you can protect yourself and your organization from email-based threats. Stay vigilant and always verify before you trust.