My Send to OmniFocus Inbox services has dissapeared from Mail.app’s services menu which also makes the Clipping from Mail feature not functional. If i however select a piece of text inside on e-mail the services is available.
If there is one email selected in the left pane, clippings has no problem. Services show up easy. However, if there is a thread of emails, and one of those individual messages is selected in the pane on the right, the services disappear.
Additionally, for those of us who use a combination of modifier keys and a spacebar, the default behavior of the spacebar kicks in when trying to use the shortcut in a thread of message or a long individual message: scrolling down.
What users then must do is scroll to the bottom of the right window (or hit the spacebar repeatedly until they’re at the bottom) then invoke the spacebar-using shortcut. At that point, as long as the thread is selected in the pane on the left (but not an individual message in a thread) the clippings shortcut will work as expected.