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:
The SMTP server cluster send.columbia.edu will be upgraded to new servers tomorrow, Thursday, at 7:30 A.M. There will be no downtime. Systems using send.columbia.edu as the SMTP server will automatically connect to the new cluster after we make the change.
One of the four servers in send.columbia.edu was not handling mail from 00:55 to 09:35 this morning. The problem has been corrected.
The send.columbia.edu system sends outbound mail from Lionmail, other CUIT systems, and end users whose client is configured to use send.columbia.edu. 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.
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 nyspi.columbia.edu 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 @cumc.columbia.edu, has not been affected.