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 ?