Drag emails out of Geary should somehow give access to the mail
I'm trying to drag an email out of Geary into a different application (GNOME Keysign in my case). Geary, however, does not seem to support emails (nor attachments!) to be dragged out.
Evolution supports this. It places the path to the email in mbox format, e.g.:
I would like to drag attachments, but also whole emails, out, because then I can operate on the emails further, e.g. extract encrypted content (encrypted certifications, in my case), produce a response and offer appropriate action (return the certification back to the sender, save the certification artefact, upload it...).