University of Nebraska incident

MS365 email bounce issue identified

Resolved after 20 hours 12 minutes, affecting Microsoft 365 - Outlook (Exchange Online), on January 12, 2026.

resolved Jan 13, 2026, 02:57 PM UTC

All systems are operating normally. This issue is resolved. Updated by Bryan Fitzgerald

Started
Jan 12, 2026, 06:45 PM UTC
Resolved
Jan 13, 2026, 02:57 PM UTC
Duration
20h 12m
Detected by Pingoru
Jan 12, 2026, 06:45 PM UTC

Affected components

Microsoft 365 - Outlook (Exchange Online)

Update timeline

  1. identified Jan 12, 2026, 06:45 PM UTC

    ITS has identified the cause of the issues and is taking steps to remediate impact to affected services. Domains impacted thus far are Nebraska.edu, UNOmaha.edu, UNL.edu and UNK.edu. Updated by Bryan Fitzgerald

  2. monitoring Jan 12, 2026, 08:24 PM UTC

    All issues appear to have subsided, and all systems are performing as expected. We're continuing to monitor for any reoccurring problems. Submitted by Bryan Fitzgerald

  3. resolved Jan 13, 2026, 02:57 PM UTC

    All systems are operating normally. This issue is resolved. Updated by Bryan Fitzgerald

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