Does anyone know how to get the S/MIME plugin enabled for Claws mail? I see that it supports S/MIME encryption but when I downloaded the plugin it appears that it needs to be compiled somehow. Which I don't know how to do.

Maybe someone who has the SDK installed can compile it and make a deb?

It needs porting of gnupg, gpgsm, and tho whole gnupg stack; and it's made hard by the fact the tablets ship with osso-gnupg, a stripped down gnupg that can't do signature/encryption/decryption but only signature checking, and which is source of conflicts. That's why no GPG plugins are available either for Claws Mail, as of today.

Actually I was referring to S/MIME which uses openssl, not gnupg (at least as far as I'm aware). But maybe I'm wrong about that.

I did find a S/MIME plugin that is available for Claws mail on the web site. But its a version that has to be downloaded and compiled. Hence my pondering...

Claws Mail's S/MIME plugin uses the Gnupg implementation. What I said in my previous reply is as a Claws Mail developer and author of the S/MIME plugin, and I'm also the one who builds Maemo packages, so it's a real answer: these plugins aren't ported because they're a PITA to port

Your totally right, my bad I'm used to sometimes people posting who might not know the background. In this case I didn't know! For some reason I had it in my head that openssl was always used for the signing and decrypting. I had no idea it was gnupg, but thanks for letting me know.

So, it appears I'm outta luck then. And if Modest goes live and doesn't include S/MIME I'm really gonna be outta luck