CL_BCS Mail set_message_subject not working

When I use set_message_subject, it does not work.

The email always uses the subject of the document - which is only 50 characters long.

*     -------- create and set document -------------------------------
*     create document from internal table with text
        document = cl_document_bcs=>create_document(
                  i_type     = 'RAW'
                  i_text     = i_text    "Tabelle!!
                  i_language = 'D'
                  i_subject  = i_subject
                   ).

*     add document to send request
        CALL METHOD send_request->set_document( document ).

*     --------- set long subject -------------------------------------
* does not work yet...
        CALL METHOD send_request->set_message_subject( ip_subject ).

Any help will be appreciated. I cannot find too much about using CL_BCS for mailing in the SDN....

By the way: <b>Does anyone know if and how it is possible to add Extra-Headers to the email?</b> They all start with "X-". One that SAP WebAS is adding is this one:

X-Mailer: SAP Web Application Server 7.00

Thanks.

For anyone having other questions about sending emails with CL_BCS, I recommend this blog: /people/thomas.jung3/blog/2004/09/08/sending-e-mail-from-abap--version-610-and-higher--bcs-interface

- sadly this specific problem was not mentioned there...

Alex Nicolovius