OpenText incident

Zix SMB and Secure Cloud Encryption services Receiving "Unbalanced" reject for outgoing messages

Minor Resolved View vendor source →

OpenText experienced a minor incident on October 9, 2026 affecting Zix Encryption Services - Hosted SMB and Zix Encryption Services - Secure Cloud Email Encryption (AEE/ZEE), lasting 5h 12m. The incident has been resolved; the full update timeline is below.

Started
Oct 09, 2026, 03:09 PM UTC
Resolved
Oct 09, 2026, 08:22 PM UTC
Duration
5h 12m
Detected by Pingoru
Oct 09, 2026, 03:09 PM UTC

Affected components

Zix Encryption Services - Hosted SMBZix Encryption Services - Secure Cloud Email Encryption (AEE/ZEE)

Update timeline

  1. investigating Oct 09, 2026, 03:09 PM UTC

    Multiple services are currently experiencing an issue where senders of messages are receiving "unbalanced" as a reject/NDR notification. Teams are currently assembled and working to resolve the issue. We appreciate your patience. Tracking Number: forth coming

  2. investigating Oct 09, 2026, 03:12 PM UTC

    Multiple services are currently experiencing an issue in which message senders are receiving "unbalanced" as a reject/NDR notification. Teams are currently assembled and working to resolve the issue. We appreciate your patience. Tracking Number: IM4015057

  3. investigating Oct 09, 2026, 03:24 PM UTC

    Zix SMB and Secure Cloud Encryption services are currently experiencing an issue when senders of messages are receiving a reject notice/NDR with "Unbalanced" as the reason. Teams are currently assembled and working to resolve the issue. We appreciate your patience. Tracking Number: IM4015057

  4. investigating Oct 09, 2026, 04:06 PM UTC

    Zix SMB and Secure Cloud Encryption Services are still experiencing an issue when sending outbound messaging. Teams have assembled, identified the problem, and are working to resolve the issue as quickly as possible. We appreciate your patience. Tracking Number: IM4015057

  5. monitoring Oct 09, 2026, 04:25 PM UTC

    Zix SMB and Secure Cloud Encryption services experienced an issue where all outbound messages were rejected for "Unbalanced". Service has been restored and is being validated. We appreciate your patience. Tracking Number: IM4015057

  6. resolved Oct 09, 2026, 08:22 PM UTC

    Zix SMB and Secure Cloud Encryption services experienced an issue when sending outbound messages. Users would experience messages being undelivered, with the NDR showing the issue as Unbalanced. The issue is now resolved. We appreciate your patience. Tracking Number: IM4015057