It appears the jbosstools-openshift_master_otherOS and jbosstools-central_master_otherOS (and possibly some openjdk) jobs are spamming a very specific email address, which is not specifically listed nor contributes to any of our repositories (github@f****g.de).
Issue raised to eng-ops: https://engineering.redhat.com/rt/Ticket/Display.html?id=410556