Impossible to resume editing closed drafts

Is there some trick to resuming editing, or is this a bug? I should be able to open Drafts, double-click on a message in there, and pick up where I’d left off in composing my message.

It will work if you open the message from the Drafts folder. Unfortunately some servers might remove the draft flag from the message, so the application doesn’t see it as a draft and it can’t be edited. My comments here reference a workaround for Yahoo! servers, but it should work with others as well:

Thanks for the workaround!

BTW, if this is a “yahoo problem,” it an eM Client problem with Yahoo. I cannot duplicate this problem in Mail.app, Canary Mail, Postbox, or Outlook, and I’ve never encountered this problem in any other app. Seems a lot like an eM Client bug to me.