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Sense and sensitivity

Tips offered to keep emails secure

The CyberSafe at USPS sites offer additional email safety tips.

Employees who improperly send emails can undermine the security of Postal Service information systems.

As part of National Cyber Security Awareness Month, the CyberSafe at USPS team offers these tips:

  • Limit personal use of Postal Service email accounts.
  • When you send emails that contain sensitive information outside USPS, encrypt the information by typing #SENSITIVE# in the subject line. This will secure the email content and attachments.
  • When you email sensitive messages within the Postal Service, use password-protected WinZip files to encrypt the information.
  • Don’t use USPS devices — including computers, smartphones and tablets — to check personal email accounts or social media sites.
  • Don’t forward Postal Service emails containing sensitive information to personal email accounts.
  • Don’t open emails from individuals or companies you don’t know or recognize.
  • Don’t “reply all” to emails with lengthy recipient lists unless necessary.
  • Don’t use personal electronic devices to receive, process, store or send emails that contain sensitive Postal Service information.

If you receive a suspicious email, send it to

More tips are available on the CyberSafe at USPS sites on Blue and LiteBlue.

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