2018-06-25 · 2018 DNS Overview for External Workflow 2.0 Email Notification Approval Install, Upgrade & Admin Archived post from 2018. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps. Dan Peltier offers some great detail on setting up workflow in GP to allow approvals from outside the firewall. Original article: https://community.dynamics.com/gp/b/dynamicsgp/archive/2018/06/14/dns-overview-for-external-workflow-2-0-email-notification-approval