3739158 - Opening .msg Attachments shows browser security warning in Edge downloads

When opening or downloading .msg email attachments from the application in Microsoft Edge, a security warning appears stating that the file type may be harmful.

• SAP Cloud for Customer

1. Login in the C4C using the Microsoft Edge
2. Go to the Service Work Center
3. Open the Tickets View
4. Open a Ticket with a .msg attachment
5. Go to the Attachment tab
6. Click in the file you want to download
7. A message saying "mail 123.msg could harm your device. Do you want to keep it anyway?"

Built-in security in Microsoft Edge classifies .msg downloads as potentially unsafe and prompts for user confirmation.

This is standard browser behavior and not caused by the application.

• Confirm the .msg file originates from a trusted source.
• In Microsoft Edge, when prompted, choose Keep → Keep anyway to proceed with the download.
• As an alternative, download the .msg attachment using another browser (for example, Chrome), where the prompt may not appear.

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SAP Cloud for Customer add-ins all versions ; SAP Cloud for Customer core applications all versions