Problem : This attachment is a MAPI 1.0 embedded message and is not supported by this mail system.
I received an email from a GMail account to my Outlook/Exchange account. The email is from a trusted party and attached to it was an unknown file type that my Outlook cannot open. The properties of the file is empty and is a mere 89 bytes. The file supposedly contains some textual information that I need but cannot “extract”.
When opening it with Notepad, the resulting text is “This attachment is a MAPI 1.0 embedded message and is not supported by this mail system.”
Any ideas?
Solution: This attachment is a MAPI 1.0 embedded message and is not supported by this mail system.
Greetings, mcnuttlaw !
You can add the attachment extension to the Level1Remove key to allow the attachment in Outlook
https://www.slipstick.com/outlook/opening-exe-attachments-and-outlook-e-mail-security/
