email

type Destination struct {
	To           string `mapstructure:"to" description:"Email address of where to send certificates"`
	From         string `credential:"true" mapstructure:"from" description:"Email of from address"`
	SMTPHost     string `credential:"true" mapstructure:"host" description:"SMTP Host"`
	SMTPPort     string `credential:"true" mapstructure:"port" description:"SMTP Port"`
	SMTPUsername string `credential:"true" mapstructure:"username" description:"SMTP Username"`
	SMTPPassword string `credential:"true" mapstructure:"password" description:"SMTP Password"`
}