Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
'Updated by Extendoffice 20230410
  Const xDelayTime As String = "07:30:00"  'The delay delivery time of emails
  Const xCompareTime As String = "17:30:00" 'The time to enable the delay delivery option
  Dim xMail As Outlook.MailItem
  Dim xWeekday As Integer
  Dim xNowTime As String
  Dim xIsDelay As Boolean
  Dim xRet1 As Integer
  Dim xRet2 As Integer
  On Error GoTo xError
  If (Item.Class <> olMail) Then Exit Sub
  Set xMail = Item
  If xMail.Importance = olImportanceHigh Then Exit Sub 'Exclude emails with a high importance flag
  xWeekday = Weekday(Date, vbSunday)
  xNowTime = Format(Now, "hh:nn:ss")
  xIsDelay = False
  xRet1 = StrComp(xNowTime, xDelayTime)
  xRet2 = StrComp(xNowTime, xCompareTime)
  If xRet1 = xRet2 Then
    xIsDelay = True
  End If
  If (xRet1 = -1) And (xRet2 = -1) Then
    xMail.DeferredDeliveryTime = Date & " " & xDelayTime
  Else
    If ((xWeekday = vbFriday) And xIsDelay) Or (xWeekday = vbSaturday) Or (xWeekday = vbSunday) Then
      xMail.DeferredDeliveryTime = (Date + (vbSaturday - xWeekday + 2)) & " " & xDelayTime
    ElseIf xIsDelay Then
      xMail.DeferredDeliveryTime = (Date + 1) & " " & xDelayTime
    End If
  End If
Exit Sub
xError:
  MsgBox "ItemSend: " & Err.Description, , "Kutools for Outlook"
End Sub

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
'Updated by Extendoffice 20230410
  Const xDelayTime As String = "08:00:00"  'The delay delivery time of emails
  Const xCompareTime As String = "17:45:00" 'The time to enable the delay delivery option
  Dim xMail As Outlook.MailItem
  Dim xWeekday As Integer
  Dim xNowTime As String
  Dim xIsDelay As Boolean
  Dim xRet1 As Integer
  Dim xRet2 As Integer
  Dim xDelayInterval As Integer
  On Error GoTo xError
  If (Item.Class <> olMail) Then Exit Sub
  Set xMail = Item
  xWeekday = Weekday(Date, vbSunday)
  xNowTime = Format(Now, "hh:nn:ss")
  xIsDelay = False
  xRet1 = StrComp(xNowTime, xDelayTime)
  xRet2 = StrComp(xNowTime, xCompareTime)
  If xRet1 = xRet2 Then
    xIsDelay = True
  End If
  If (xRet1 = -1) And (xRet2 = -1) Then
    xMail.DeferredDeliveryTime = Date & " " & xDelayTime
  Else
    If ((xWeekday = vbFriday) And xIsDelay) Or (xWeekday = vbSaturday) Or (xWeekday = vbSunday) Then
      xMail.DeferredDeliveryTime = (Date + (vbSaturday - xWeekday + 2)) & " " & xDelayTime
    ElseIf xIsDelay Then
      xMail.DeferredDeliveryTime = (Date + 1) & " " & xDelayTime
    End If
  End If
Exit Sub
xError:
  MsgBox "ItemSend: " & Err.Description, , "Kutools for Outlook"
End Sub

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
'Updated by Extendoffice 20230117
  Const xDelayTime As String = "07:30:00"  'The delay delivery time of emails
  Const xCompareTime As String = "17:30:00" 'The time to enable the delay delivery option
  
  Dim xMail As Outlook.MailItem
  Dim xWeekday As Integer
  Dim xNowTime As String
  Dim xIsDelay As Boolean
  On Error GoTo xError
  If (Item.Class <> olMail) Then Exit Sub
  Set xMail = Item
  xWeekday = Weekday(Date, vbSunday)
  xNowTime = Format(Now, "hh:nn:ss")
  xIsDelay = False
  If StrComp(xNowTime, xDelayTime) = StrComp(xNowTime, xCompareTime) Then
    xIsDelay = True
  End If
  If ((xWeekday = vbFriday) And xIsDelay) Or (xWeekday = vbSaturday) Or (xWeekday = vbSunday) Then
    xMail.DeferredDeliveryTime = (Date + (vbSaturday - xWeekday + 2)) & " " & xDelayTime
  ElseIf xIsDelay Then
    xMail.DeferredDeliveryTime = (Date + 1) & " " & xDelayTime
  End If
Exit Sub
xError:
  MsgBox "ItemSend: " & Err.Description, , "Kutools for Outlook"
End Sub