Thanks John,
the solution I have used is shown below, commented out lines can be used to add other options etc.
Sub SendMAPIMessage()
Dim MapiSession As Object
Dim MapiMessage As Object
Dim MapiRecipient As Object
Dim MapiAttachment As Object
Dim Recpt, errObj As Long, errMsg
Const mapiTo = 1
Const mapiHigh = 1
On Error GoTo MAPITrap ' Create the MAPI Session.
Set MapiSession = CreateObject("Mapi.Session"

' Log on to the session
' MapiSession.Logon profilename:="MS Exchange Settings"
MapiSession.Logon profilename:="Microsoft Outlook"
' Add a message to the Outbox.
Set MapiMessage = MapiSession.Outbox.Messages.Add
' Add the recipients of the message. Note, each recipient must be
' added separately to the Recipients collection of the Message
' object.
With MapiMessage
Set MapiRecipient = MapiMessage.Recipients.Add
' MapiRecipient.Name = "derrick.taylor@stockport.gov.uk"
MapiRecipient.Name = "Derrick Taylor"
MapiRecipient.Type = mapiTo
'Set MapiRecipient = MapiMessage.Recipients.Add
'MapiRecipient.Name = "Andrew Fuller"
'MapiRecipient.type = mapiCc
'Set MapiRecipient = MapiMessage.Recipients.Add
'MapiRecipient.Name = "Michael Suyama"
'MapiRecipient.type = mapiBcc
' Resolve each recipient's e-mail name.
Debug.Print .Recipients.Count
' For Recpt = 0 To .Recipients.Count - 1
For Recpt = 1 To .Recipients.Count
.Recipients(Recpt).Resolve showdialog:=True
Next
' Attach a file to the message.
'Set MapiAttachment = MapiMessage.Attachments.Add
'With MapiAttachment
' .Name = "Customers.txt"
' .type = mapiFileData
' .Source = "C:\Examples\Customers.txt"
' .ReadFromFile FileName:="C:\Examples\Customers.txt"
' .position = 2880
'End With
' Assign the text, subject, and importance of the message.
.subject = "My Subject"
.Text = "This is the text of my message." & vbCrLf & vbCrLf
.importance = mapiHigh
' View the message in Microsoft Exchange before sending. Set
' the ShowDialog argument to False if you want to send the
' message without viewing it in Microsoft Exchange.
.Send showdialog:=False
End With
Set MapiSession = Nothing ' Clear the object variable.
MAPIExit:
Exit Sub
MAPITrap:
errObj = Err - vbObjectError ' Strip out the OLE automation error.
Select Case errObj
Case 275 ' User cancelled sending of message.
Resume MAPIExit
Case Else
errMsg = MsgBox("Error " & errObj & " was returned."

MsgBox "Error number " & Err.Number & "." & Chr(13) & Err.Description
Resume MAPIExit
End Select
Resume
End Sub