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Outbound Email, Mobile Push Notifications, and Support Ticket Delivery Impacting All Cloud Products

ResolvedcriticalOfficial source confirmedSpecific component onlyFirst recorded update Dec 27, 2025, 04:42 AM · Resolved Dec 27, 2025, 05:20 AM

### Summary On **December 27, 2025**, between **02:48 UTC and 05:20 UTC**, some Atlassian cloud customers experienced failures in sending and receiving emails and mobile notifications. Core Jira and Confluence functionality remained available. The issue was triggered when **TLS certificates used by Atlassian’s monitoring infrastructure expired**, causing parts of our metrics pipeline to stop accepting traffic. Services responsible for email and mobile notifications had a critical path dependency on monitoring path leading to service disruptions. All impacted services were fully restored...

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What visitors reported during this incident

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Affected services

Atlassian Support Ticketing

Updates (3)

  1. Jan 30, 2026, 04:09 AM
    Outbound Email, Mobile Push Notifications, and Support Ticket Delivery Impacting All Cloud Products

    ### Summary On **December 27, 2025**, between **02:48 UTC and 05:20 UTC**, some Atlassian cloud customers experienced failures in sending and receiving emails and mobile notifications. Core Jira and Confluence functionality remained available. The issue was triggered when **TLS certificates used by Atlassian’s monitoring infrastructure expired**, causing parts of our metrics pipeline to stop accepting traffic. Services responsible for email and mobile notifications had a critical path dependency on monitoring path leading to service disruptions. All impacted services were fully restored by

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  2. Dec 27, 2025, 05:20 AM
    Outbound Email, Mobile Push Notifications, and Support Ticket Delivery Impacting All Cloud Products

    We have successfully mitigated the incident and all affected services are now fully operational. Our teams have verified that normal functionality has been restored across all areas. Thank you for your patience and understanding while we worked to resolve this issue.

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  3. Dec 27, 2025, 04:42 AM
    Outbound Email, Mobile Push Notifications, and Support Ticket Delivery Impacting All Cloud Products

    We have taken steps to mitigate the issue and are seeing recovery in the affected services. Our teams will continue to closely monitor the situation and are actively working to confirm that all services are fully restored. We will provide further updates as we make additional progress.

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What to do next

  • Verify your own services recovered cleanly. Some upstream outages leave queues or caches in a degraded state, run smoke tests before declaring green internally.
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