currently, a p7m file is the result I would be great to be able to provide a From address and use (one of the [if multiple with a pull-down]) the encryption certificate's subject mail address such that this becomes a .eml file that can also be decrypted by alternative standard programs such as a) Thunderbird b) MS-outlook e.g. if you attach it to an outer non-encrypted mail Reproducible: Always see also Bug 308235
see also https://bugs.gnupg.org/gnupg/issue2091
Created attachment 121208 [details] use your browser to smime encrypt up to 1 GB https://e-2-e.ch/smimeJs