I did numerous sa-learn on this one type of email and spamassasiin makes the following evaluation every time. I am not sure what I am doing wrong.
X-Spam-Level: ** X-Spam-Status: No, score=2.3 required=5.0 tests=BAYES_50,HTML_MESSAGE, MIME_HTML_ONLY,RDNS_NONE,T_FILL_THIS_FORM_SHORT,T_REMOTE_IMAGE autolearn=no version=3.3.2