This is due to a well known fact that Microsoft hates the email ecosystem. I work on a email client and a large majority of "this email is broken" is due to we

This is due to a well known fact that Microsoft hates the email ecosystem. I work on a email client and a large majority of "this email is broken" is due to weird outlook behavior. Most recently it's TNEF attachments: https://en.wikipedia.org/wiki/Transport_Neutral_Encapsulation_Format https://en.wikipedia.org/wiki/Transport_Neutral_Encapsulatio...