Hello,
after clicking on the link shown on the confirmation email, I'm able to acces to the confirmation form page but, looking on the db, the field
customer_1_binding_tbl.user_status is not updated (the value still remain '5' - it must be '1').
Thnks, Joe.
I found it. The openemm user manual on chapter 11.2.4.3 don't say that the "Double opt-in: Confirmation" action must be defined as the start action for the "DoubleConfirm" form. After adding this action the double subscribe work fine.