I'm currently using this version " 2.2.3 BETA 20150707" and Email digests are not being sent out.

I can generate a digest email successfully and send a direct message. However, when I click "Force Digest Send" I am not getting any emails. I have these settings in my app settings
It appears that this used to be a problem in an earlier version so I would assume that it is fixed. issue 
Any Ideas?

Anybody??

This problem with the digest email still exist, i can confirm that. At the moment i can not tell you when this will be fixed. I already found what is the problem but it will take some time to fix.