thank you for your help, I have my code as follows
Public gappOutlook As Outlook.Application
Private mItm As Outlook.MailItem
Private Sub btnEmail_Click()
On Error GoTo ErrorHandler
Dim fBlnOK As Boolean
If IsNothing(Me.ComEmail) Then
Exit Sub
End If
Dim strTxtDearName As String
strTxtDearName = Forms.frmPriceChangeNotificationEquipment.Form.ContactDear
Set gappOutlook = GetObject(, Outlook.Application)
Set mItm = gappOutlook.CreateItem(olMailItem)
With mItm
.To = Me.ComEmail
.Subject = Me.PCTitle
.Body = "Dear " & strTxtDearName & vbCrLf _
& vbCrLf & Me.PCText1 _
& vbCrLf & vbCrLf & Me.PriceString _
& vbCrLf & vbCrLf & Me.PCText2 _
& vbCrLf & vbCrLf & Me.PCExitLine _
& vbCrLf & vbCrLf & FnGSConfNotice()
.Display
End With