To support the effective, efficient, and secure use of Information Technology by Computer Sciences Students, Faculty, and Staff in Teaching, Learning, Research, and Public Service
Update: The problem has been fixed (it was an error in ldap data, as a side-effect of other issues)
Email to cs.wisc.edu addresses who are not using Office 365 is currently not being delivered. Affected groups include our request/supprt address, firstname.lastname@example.org, alumni users with cs.wisc.edu addresses and mailman mailing lists.
This appears to be a problem or change at DoIT. A ticket is open with the DoIT Helpdesk and the CSL is continuing to look into the problem.