IPWorks S/MIME 2020 .NET Edition

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Transfer Event

Fired while the message text gets transferred to MailServer .


public event OnTransferHandler OnTransfer;

public delegate void OnTransferHandler(object sender, ShtmlmailerTransferEventArgs e);

public class ShtmlmailerTransferEventArgs : EventArgs {
  public int Direction { get; }
  public long BytesTransferred { get; }
  public int PercentDone { get; }
Public Event OnTransfer As OnTransferHandler

Public Delegate Sub OnTransferHandler(sender As Object, e As ShtmlmailerTransferEventArgs)

Public Class ShtmlmailerTransferEventArgs Inherits EventArgs
  Public ReadOnly Property Direction As Integer
  Public ReadOnly Property BytesTransferred As Long
  Public ReadOnly Property PercentDone As Integer
End Class


One or more Transfer events are fired during message delivery. Messages consist of MessageText and an optional AttachedFile. The BytesTransferred parameter shows the number of bytes sent starting from the beginning of MessageText and/or AttachedFile.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note that events are not re-entrant. Performing time consuming operations within this event will prevent it from firing again in a timely manner and may impact overall performance.

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IPWorks S/MIME 2020 .NET Edition - Version 20.0 [Build 8161]