I suspect that this issue may not be a Nintex issue. but I'll try here anyway. I have a list that has a People / Group picker field. Works great when I select a person or a group on SharePoint. However in our company we have email boxes that are shared. For example one of the shared email boxes (team boxes) is firstname.lastname@example.org with an internal name of "Confirmation Team".
When I just the people picker to and type in "Confirmation Team" it says it can't find it. When I try email@example.com (that would be considered in domain address)it says I can't share externally. How do I get the people picker to bring up the shared email box? is there a setting on SharePoint? Keep in mind that I have very limited access to SharePoint's inner workings. The company has locked down most of the functions.
Using SharePoint 2013.