Hello @montezh2001
You are trying to save the value of the dmOutboundFlag in the delivery schema and there is no such field in the schema.
Replace
delivery.dmOutboundFlag =vars.dmOutboundFlag;
with
delivery.variables._var[0] = vars.dmOutboundFlag;
Then in the delivery properties create a variable with the name "dmOutboundFlag".
Now you can use this variable in the email delivery like this.
<%= variables.dmOutboundFlag %>