Steps to reproduce: 1. Select PDF file on desktop 2. Hit chosen shortcut to action the selected file 3. Select Email To... 3. Start typing a recipient's name 4. Hit enter for the chosen recipient 5. Hit Alfred's shortcut (nothing happens - it's hung) Environment notes: I don't use Mail.app (haven't for many many months), but I noticed that it required a database migration. I did that and tried again. Still an issue. I use Airmail for my default mail client. Late 2013 MacBook Pro Retina 13" running OS X 10.9.3. Other: I'm a developer and can provide a spin dump or whatever you need.