I've created a proof of concept Thunderbird add on (based on Display
Mail User Agent), which indicates if a incoming mail was encrypted an/or
signed. At the moment I'm a bit confused about the Ciphermail Headers. I
need to understand them better. What's all about these numbers?
These are the combinations I found so far. But I found no rule when a 1
appears and if, why. Could there be other numbers? My problem is that I
can ask the TB API only for complete headers and not for fragments. This
is why I need to know which combinations are possible.
Besides of these numbers I also need a good explanation what exactly
could be derived form the headers. E.g. is it possible that a signed
mail is verified but not trusted and vice versa.
MHC SoftWare GmbH
HR Coburg: B2242
Geschaeftsfuehrer: Matthias Henze