I promote encryption in my union, association and workplace. Currently, not every computer run linux, and some still run windows.
However, I succeed in making everyone use thunderbird; I try now to make every email encrypted. It work pretty well until I try to encrypt a shared address (let say “contact@org”) :
The RSA key work well on thunderbird on linux, but fail to decrypt email on thunderbird on windows.
What am I missing ? Thunderbird seems to support ECC encryption; is it more suited ?


Never heard about. According to wikipedia, only the US, the UK and the Ireland are subject to Discovery. Fortunately we are not in this case; we are subject to the GDPR, so if we could strengthen private information send to us, we have to. Furthermore, unions have special protections for their information