Incident Discovery Time: 10:00am on 01/05/2019 Time of Resolution: 12:10pm on 01/05/2019 Services Impacted: E-mail – Exchange

Description of Impact

Clients using O365 were unable to receive inbound mail sent from outside of O365. Inbound mail to non-O365 services such as BU Google Mail or departmental mail servers was not impacted. Outbound mail sent from O365 was not impacted. Mail sent within O365 to another O365 mailbox was not impacted.

Incident Description and Resolution

IS&T teams have resolved the incident.

Additional Information

IS&T teams have identified the cause of this incident to be an issue with a digital certificate on the on campus Exchange infrastructure which expired at midnight on January 5. The certificate was updated to resolve the incident. Inbound mail was queued between midnight and 12:10 p.m. and is in the process of being delivered. If you continue to have issues, please contact the IT Help Center.