Columbia University Information Technology

Service Alerts


Resolved Service Alerts

Resolved Service Alerts

  • certain websites
    03/28/2016 - 10:00pm to 03/28/2016 - 10:30pm

    CUIT is performing necessary maintenance from 10:00 p.m. to 10:30 p.m. on Monday, March 28 to maximize the security and reliability of the servers which host our Drupal 7 websites. This scheduled maintenance is expected to be completed on time.

    During the scheduled time of this Service Alert, users may experience a temporary inability to access their website. To avoid any lost data, we have also advised all owners of websites based on Drupal 7 to refrain from making any changes during this time.

    CUIT apologizes for any inconvenience this may cause and will do our best to ensure that this maintenance is completed on-time so that you can get back to your normal activities as quickly as possible.  If clients continue to experience issues after the service-interruption hours, please contact the CUIT Service Center at:


    Phone:   212-854-1919



    For a list of active and future Service Alerts, please visit


  • Email
    04/27/2016 - 02:50pm to 04/29/2016 - 02:50pm

    The SMTP server cluster will be upgraded to new servers tomorrow, Thursday, at 7:30 A.M. There will be no downtime. Systems using as the SMTP server will automatically connect to the new cluster after we make the change.


  • Email
    05/06/2016 - 12:10pm to 05/06/2016 - 05:00pm

    This problem has been fixed


    SMTP authentication is failing on 2 of 4 hosts in CUIT staff are investigating the problem.


  • Email
    06/17/2016 - 12:55am to 06/17/2016 - 05:00pm

    One of the four servers in was not handling mail from 00:55 to 09:35 this morning. The problem has been corrected.

    The system sends outbound mail from Lionmail, other CUIT systems, and end users whose client is configured to use The effect of the outage was primarily delays in sending messages (1/4 would have to be re-tried), but for clients the individual user might have to manually re-send from an outbox.

    The cause is being investigated.

  • Email
    06/21/2016 - 03:21pm to 06/22/2016 - 10:00am

    Update: It looks as if this problem was corrected about 3:30 p.m. today. We are able to resolve the hostnames that could not be found earlier.


    We (CUIT) observe that email to and from some systems located at CUMC has been affected by DNS problems since early this morning. Notably New York State Psychiatric Institute is not reachable, and another system called "nova-s" is affected. CUMC IT staff will work on the problem. 

    The main mail system at CUMC, with addresses, has not been affected.