insert a link like <p><a href="http://www.lyrikline.org/">link</a></p> into any glossary item and you get forwarded to totally diffrent page ( some viagra some thing)

this happend not in moodle/blog items neither in wordpress on same server.
but on the orange school

the URL will be rewritten to http://94.100.17.136/std/in.cgi?default&parameter=http://school.demo.moodle.net/mod/glossary/view.php?id=14&mode=entry&hook=75&se=lyrikline.org&HTTP_REFERER=http://school.demo.moodle.net/mod/glossary/view.php?id=14&mode=entry&hook=75

The reason is a scary rewirte from the server of lyrikline.org. everytime a referrer url contains the string "glossar" it redirects to spam pages. I have informed the owner of the server. I (am sorry if I may have irritated somebody)

I would like to have a filter for "not sending referrer url to external link pages"