Forwarding as original Content-Type (plain text vs html)

Can't seem to find an option to allow me to forward email using the original content-type. I'm using inline forward, automatic format selection w/ default html styles. I prefer to compose in HTML, but regularly receive plain text reports from our automated build system. These reports need to be formatted plain text to display properly. I often need to forward these to other users, but Thunderbird always uses HTML which munges the report. There doesn't seem to be anything I can do to fix the report once it's been inlined in HTML as the whitespace is irreversibly changed. (I've tried changing to a fixed-width font, or setting it to send in plain text). Is there an option setting somewhere in the bowels of Firefox that will select the format based on the original in the message I'm forwarding? Thunderbird 102.4.2 (64-bit) Linux