# Sigma Computing: Major incident: Issue with Burst email exports are resolved **Summary:** Sigma Computing reported a major outage of Burst email exports starting 2026-03-05 10:10 UTC, lasting 4 days 7 h until resolution at 2026-03-09 17:31 UTC; standard exports remained operational. Engineers deployed a fix and re-enabled Burst Email Exports at 03-07 01:27 UTC, with no recurring problems observed during subsequent monitoring. _(machine-written, sol)_ - Kind: Major incident · Label: outage (model (Jev)) - Changed: 2026-03-05 10:10 UTC · Detected: 2026-10-17 18:22 UTC - [Source: https://stspg.io/s05vlfkgp6ns](https://stspg.io/s05vlfkgp6ns) - [Company: Sigma Computing](https://rewindex.com/company/sigma-computing.md) - Versions: before (none: first archived) → after incident\_version:77/t4509ttw587q@3f12a92b188e - Change 1 of 1 for this incident ## What changed **1. Added: Title** ```diff + Issue with Burst email exports are resolved ``` **2. Added: Impact** ```diff + major ``` **3. Added: Status** ```diff + postmortem ``` **4. Added: Start time** ```diff + 2026-03-05 10:10 UTC ``` **5. Added: Resolved time** ```diff + 2026-03-09 17:31 UTC ``` **6. Added: Update** (investigating) · 2026-03-04 20:50 UTC ```diff + We have temporarily paused burst email exports to investigate a technical issue. Status: Burst exports are unavailable. Unaffected: Standard exports are fully operational. We will update this notification with new developments. ``` **7. Added: Update** (investigating) · 2026-03-04 22:25 UTC ```diff + Our engineers are still investigating the issue with burst email exports. This feature will remain paused until investigation has identified the root cause. We apologize for the inconvenience and we will update this status with new developments as soon as they become available. ``` **8. Added: Update** (investigating) · 2026-03-05 01:27 UTC ```diff + Our engineers are actively investigating the issue with burst email exports. This feature will remain paused until the root cause. We will update this status with new developments as soon as they become available. ``` **9. Added: Update** (investigating) · 2026-03-05 05:31 UTC ```diff + Our engineers are actively investigating the on-going issue with burst email exports. We understand the impact this has on your workflows and appreciate your patience. Impact on customers: This feature will remain unavailable while the investigation is ongoing. ``` **10. Added: Update** (investigating) · 2026-03-05 10:10 UTC ```diff + Our engineers are continuing to investigate the burst email exports issue. We appreciate your patience. Impact on customers: This feature will remain unavailable while the investigation is ongoing. ``` **11. Added: Update** (investigating) · 2026-03-05 18:33 UTC ```diff + Our engineers are actively investigating the on-going issue with burst email exports. We appreciate your patience. Impact on customers: This feature will remain unavailable while the investigation is ongoing. ``` **12. Added: Update** (investigating) · 2026-03-05 21:33 UTC ```diff + Our engineers are actively investigating the on-going issue with burst email exports. We appreciate your patience. Impact on customers: This feature will remain unavailable while the investigation is ongoing. ``` **13. Added: Update** (investigating) · 2026-03-06 00:36 UTC ```diff + Our engineers are actively investigating the on-going issue with burst email exports. We appreciate your patience. Impact on customers: This feature will remain unavailable while the investigation is ongoing. ``` **14. Added: Update** (investigating) · 2026-03-06 06:06 UTC ```diff + Our engineering team has deployed a fix and is currently validating it internally. Standard (non-burst) exports remain fully operational and are unaffected. We will share a further update as validation progresses Thank you for your continued patience. Impact on Customers: Burst email exports remain temporarily unavailable while the investigation is ongoing. ``` **15. Added: Update** (investigating) · 2026-03-06 10:26 UTC ```diff + Internal validation tests are ongoing and we will share further updates as we have them. Standard (non-burst) exports remain fully operational and are unaffected. Thank you for your continued patience. Impact on Customers: Burst email exports remain temporarily unavailable while the investigation is ongoing. ``` **16. Added: Update** (identified) · 2026-03-06 20:28 UTC ```diff + Burst email exports remain unavailable. We have deployed a fix and are currently validating it internally. Standard (non-burst) exports remain fully operational. We will provide further updates as validation progresses and before re-enabling burst email exports more broadly. Thank you for your patience. ``` **17. Added: Update** (identified) · 2026-03-07 01:22 UTC ```diff + We are continuing to work on a fix for this issue. ``` **18. Added: Update** (monitoring) · 2026-03-07 01:27 UTC ```diff + Burst Email Exports have now been re-enabled. Our engineering team has identified and deployed a fix for the issue affecting Email Burst Exports. Following thorough internal validation and testing, we have re-enabled the feature and will continue monitoring performance closely. If you experience any further issues with Burst Email Exports, please reach out to our support team via live chat. ``` **19. Added: Update** (resolved) · 2026-03-09 17:31 UTC ```diff + Issue with Burst Email Exports are resolved We previously re-enabled Burst Email Exports after deploying a fix for the issue impacting this feature. Since re-enabling, our team has closely monitored system performance and error rates, and we have not observed any recurring problems. At this time, the incident is considered fully resolved, and Burst Email Exports are operating as expected. If you encounter any new or unexpected behavior with Burst Email Exports, please contact our support team via live chat so we can investigate promptly. ``` **20. Added: Update** (postmortem) · 2026-03-17 16:19 UTC ```diff + Sigma Engineering has completed the postmortem of this incident. A Root Cause Analysis \(RCA\) is available on the Sigma Community site: [Postmortem For March 03, 2026 Burst Email Export Issue](https://community.sigmacomputing.com/t/postmortem-for-march-03-2026-burst-email-export-issue/6632) ``` ## History of this incident | When (UTC) | Change | Label | | --- | --- | --- | | 2026-03-05 10:10 UTC | Major incident: Issue with Burst email exports are resolved (this change) | outage | All Sigma Computing changes: [timeline](https://rewindex.com/company/sigma-computing/changes.md) _Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._ --- Canonical: https://rewindex.com/change/i6809df7db42268 · Markdown: https://rewindex.com/change/i6809df7db42268.md · JSON: https://rewindex.com/api/v1/changes/i6809df7db42268 · Generated 2026-10-18T00:37:31.191Z