You can connect to GeoDirectory via automation rules.
To do this:-First, click on Noptin Newsletter > Automation Rules to open the automation rules overview page then click on the "Add New" button to create a new automation rule.
Next, set the trigger to "GeoDirectory > Save Listing" (or whatever your post type is) then select the appropriate action.
Finally, set any relevant conditional logic and save the automation rule after you're done.
NOTE: This automation rule will fire for the trigger subject that you define when editing the listing. This could be a static email address, the email address of the listing owner, or an email address from a custom field.