Add smtp settings to production environment
Add smtp settings to production environment

Add the config block for the smtp settings with the relevant secrets
pulled from the ENV hash.

alphagov/e-petitions,telekomatrix/e-petitions,StatesOfJersey/e-petitions,alphagov/e-petitions,oskarpearson/e-petitions,StatesOfJersey/e-petitions,alphagov/e-petitions,joelanman/e-petitions,telekomatrix/e-petitions,StatesOfJersey/e-petitions,oskarpearson/e-petitions,ansonK/e-petitions,oskarpearson/e-petitions,unboxed/e-petitions,joelanman/e-petitions,joelanman/e-petitions,alphagov/e-petitions,ansonK/e-petitions,unboxed/e-petitions,ansonK/e-petitions,unboxed/e-petitions,telekomatrix/e-petitions,unboxed/e-petitions,StatesOfJersey/e-petitions