Beginning Tuesday, June 12, all emails received from senders outside the Postal Service will display this in the subject line: [EXTERNAL].
The organization is making this change to help you quickly identify messages that could pose a cybersecurity threat.
When you see [EXTERNAL] in a subject line, carefully assess the email for legitimacy. If the message looks suspicious, use the Report to CyberSafe button in your Outlook toolbar to alert the CyberSafe at USPS team.
You can also send suspicious messages to CyberSafe@usps.gov as an attachment by selecting the message and simultaneously hitting the Ctrl, Alt and F keys. When sharing sensitive attachments, add this to your subject line: #sensitive#.
The CyberSafe at USPS Blue page has additional information on effectively managing emails.
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