FIX Email notification workflow now ignores recipients with invalid email addresses
FIX Email notification workflow now ignores recipients with invalid email addresses

silverstripe-australia/advancedworkflow,silverstripe-terraformers/advancedworkflow,silverstripe-terraformers/advancedworkflow,silverstripe-australia/silverstripe-advancedworkflow,silverstripe-australia/silverstripe-advancedworkflow,silverstripe-australia/advancedworkflow