Update 2/27/25 2:35pm: TSO has identified the root cause. There was an MTU mismatch causing emails to not be delivered. Once the mismatch was corrected, all pending messages on Mailman started sending out to recipients. If you are still experiencing issues, please reach out to the Help Desk (CCB 225D, 404.894.7065, helpdesk@cc.gatech.edu).

WHAT HAPPENED?
TSO has received multiple reports that the mailing list service (mailman.cc.gatech.edu) stopped delivering messages.

WHEN DID IT HAPPEN?

The first report came in on Thursday June 26, 2025 around 2 PM.

WHY IS IT HAPPENING?

TSO staff is still investigating.

WHO WAS AFFECTED?

Faculty, staff, and students sending/receiving messages to a mailman mailing lists.

WHO SHOULD YOU CONTACT FOR QUESTIONS?

Feel free to contact the TSO Help Desk (CCB 225D, 404.894.7065, helpdesk@cc.gatech.edu).