In the forum we have a case where someone tells about a user who opened EML files. When GpgOL was enabled the body of that emails were empty.
I was able to reproduce this:
- Created a draft for an email in Thunderbird
- Saved that draft into an EML file
- Opened that file in Outlook
- Gpg4win 4.1.0
- Outlook 2301 (Build 16026.20146)