No, not "Great Plugin", but "Great Plugin Idea" only.
This is a bit away from beeing usable.
After only half an hour I had to uninstall it.
1. Each Mail now I get the extremely annoying MessageBox:
Diese E-Mail wirklich unverschlüsselt und unsigniert versenden?
And there is no CheckBox to avoid this.
2. Quoting mails is not working, quote signs are missing in the quoted mail
3. The keys didn't get saved, I had to reimport them again (I didn't try to reproduce it)
4. the plugin doesn't check, when there is another alternative email address in a public key present, it would only accept the main address
5. each mail gets now a public key attachment, no CheckBox to disable
Unfortunately this are too many bugs.
I don' t have the skills and the time to debug all these, so I wait till they are fixed, coming back maybe later.
Thanks
frank