Do not write non-existent mail configuration
Do not write non-existent mail configuration

The template shall not reference keys in the mail config hash
that might not be there.

voxpupuli/puppet-rundeck,puppet-community/puppet-rundeck,fairfaxmedia/puppet-rundeck,cy4n/puppet-rundeck,cernops/puppet-rundeck,danifr/puppet-rundeck,dalisch/puppet-rundeck,bodhi-space/puppet-rundeck,puppet-community/puppet-rundeck,dandunckelman/puppet-rundeck,dalisch/puppet-rundeck,tkwilliams/puppet-rundeck,danifr/puppet-rundeck,cernops/puppet-rundeck,cy4n/puppet-rundeck,bodhi-space/puppet-rundeck,zlanyi/puppet-rundeck,voxpupuli/puppet-rundeck,zlanyi/puppet-rundeck,dandunckelman/puppet-rundeck,tkwilliams/puppet-rundeck,fairfaxmedia/puppet-rundeck