Agree with these steps 100%! QQQQ
| >- Show up and try to convince her what a horrible thing she is doing? | | Yup. | | > | >- Simply ban their domain from my mailserver and report them | >to the RBLs? | | Yup. And tell her you will. Tell her she is about to get all her emails | blocked from 3/4 of the earth. | | Do NOT place false appointments. Do not hack site. DO Educate.