event

type MailEvent struct {
	Timestamp time.Time
	QueueID   string

	// From Details
	MailFrom   string
	DomainFrom string
	Size       *int
	QueuedOn   *time.Time

	// To Details
	MailTo                     string
	DomainTo                   string
	Relay                      string
	Delay                      *float64
	TimeBeforeQmgr             *float64
	TimeInQmgr                 *float64
	TimeConnSetup              *float64
	TimeTransmission           *float64
	DeliveryStatusNotification string
	Status                     string
	StatusMessage              string
	UpdateOn                   *time.Time
}