Where is the Outlook 2016 message delivery time setting "Automatically deliver every" or "schedule an automatic send receive every" stored?

Question

Outlook

Where is stored (registry or file) the delivery time setting for Outlook 2016 messages - "Automatically deliver every" or in English. "schedule an automatic send receive every"?
In the graphical menu is located here Send and receive - Send and receive groups - Define send and receive groups.