Problem using SendObject

[Persa]

Having problem using the function SendObject on a Windows 2003 server are
only getting error message

Error 2287 "Can't open the mail session "

works fine on a Windows XP computer but not on the Windows 2003 server
the only mail client installed on the server is Outlook Express
my XP computer runs Outlook is there a problem here or isnt
outlook properly registrated

any tips

Example:

DoCmd.SendObject acSendTable, "Test", acFormatXL, (e-mail address removed), , , ,
,True

Thanks for any reply


Persa