Bitbucket outage, 27 December 2025
Outbound Email, Mobile Push Notifications, and Support Ticket Delivery Impacting All Cloud Products
- Started
- Resolved
- 27 Dec 2025, 05:20 UTC (after 38 min)
- Impact
- Critical
- Affected
- Email delivery, Signup
Last update from Bitbucket
### 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 **05:20 UTC**, around **2.5 hours** after customer impact began. ### IMPACT During the impact wind...
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