All of the correctly identified spam emails have the Bayes rating at the very top of the spam score tally.
Appreciate any insight and help.
Thanks.
A typical score tally for a spam email might look like this. ( no Bayes

0.10 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid
-0.10 DKIM_VALID Message has at least one valid DKIM or DK signature
-0.10 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain
1.00 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different
1.00 HTML_IMAGE_RATIO_02 HTML has a low ratio of text to image area
0.00 HTML_MESSAGE HTML included in message
1.11 MPART_ALT_DIFF_COUNT HTML and text parts are different
-0.01 RCVD_IN_MSPIKE_H3 Good reputation (+3)
0.10 RCVD_IN_MSPIKE_WL Mailspike good senders
-0.00 SPF_HELO_PASS SPF: HELO matches SPF record
-0.00 SPF_PASS SPF: sender matches SPF record