EnableEvents Property

MailBee.SMTP object is capable of background processing, so the program's user interface does not hang, and responds to Windows events - this is called "Async mode".

Also, MailBee.SMTP object can fire events itself during long-run long-run methods (Send and RelayMessage) - this is called "Event firing".

When events are turned on, you can abort current operation by calling SMTP.Abort method (for example, in CommandClick sub of Cancel button) or by setting Proceed=False in SMTP event handler (OnSendStart, OnSendProgress, etc).

By default events are turned off because their usage slightly reduces performance. Set EnableEvents=True to enable events. You can then disable them again by setting EnableEvents=False.

Order of firing SMTP events is as following:

OnMessageReady (not fired by RelayMessage method)
OnSendStart
OnSendProgress (may be fired multiple times for a message)
OnSendComplete

Note: To use events firing in VB, you also need to check MailBee type library in Project/References and create MailBee.SMTP object using "WithEvents" syntax (see an example below). To enable only Async mode, setting EnableEvents=True is enough ("WithEvents" syntax is not necessarily required).

Value Type:	Boolean

Parameters:	None

Remarks:	Events are useful in event-driven environments only (such as VB, VBA, Delphi, etc). ASP pages cannot handle events

Usage example:

Option Explicit
Dim WithEvents objSMTP As MailBee.SMTP

Private Sub Form_Load()
  Set objSMTP = New MailBee.SMTP
  objSMTP.LicenseKey = "put your license key here"
  objSMTP.EnableEvents = True
  objSMTP.ServerName = "mailserver.com"
  If objSMTP.Connect Then
    objSMTP.RelayMessage "C:\Data\email1.eml", "from@addr.com", "to@addr.com"
    objSMTP.Disconnect
  End If
End Sub

Private Sub objSMTP_OnSendProgress(ByVal TotalBytesSent As Long, Proceed As Boolean)
    MsgBox TotalBytesSent & " bytes sent"
End Sub