Strange characters in Outlook read receipts

Case

When you send meeting requests or receive read receipts of your sent emails, the body of the text appears with strange characters inside the Outlook client, such as in the example screen shot below.

This issue can occur in the following media:

  • Read Receipts
  • Email Recalls
  • Meeting Requests
  • IRM email messages

Solution

As a workaround, you will need to carry out the procedure below.

  1. Open the system Settings window. To do this, select the Settings button in the notification area of the Taskbar.
  2. Select Time & Language.
  3. Select Language.
  4. Under Related settings, select Administrative language settings.
  5. In the Language for non-Unicode programs area, select Change system locale.
  6. Clear the Beta: Use Unicode for UTF-8 worldwide language support check box.
  7. Restart the computer.

Source

https://docs.microsoft.com/en-us/outlook/troubleshoot/message-body/strange-characters-display-message-body

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