
- Outlook patch (Build 19426.20218) broke “Encrypt Only” emails, showing unreadable attachments
- Workarounds: use Options ribbon encryption or revert to Build 19426.20186 via Command Prompt
- Microsoft also disabled inline SVGs in Outlook for Web and new Outlook for Windows
Microsoft released a new patch for classic Outlook, and broke how encrypted emails work. It is currently working on a fix, and in the meantime, it offered a few ways to open encrypted emails in the popular client app.