May <var data-var='date'>20</var>, <var data-var='time'>08:10</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'>20</var>, <var data-var='time'>07:10</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'>11</var>, <var data-var='time'>13:29</var> BST Scheduled - We wanted to give you advance notice of a short period of scheduled maintenance affecting your Sedna environment on Wednesday, 20 May, beginning at 06:10 UTC. We've timed this for when your cluster is at its quietest to keep the impact as small as possible. Here's what to expect: At the start of the window, there will be a brief period of complete downtime – up to 4 minutes, though likely shorter. During those few minutes, Sedna will be unavailable, and users will see loading spinners rather than the usual interface. Following that, there may be a further period of up to 20 minutes where you notice some reduced performance or minor service disruption before everything is fully back to normal. No mail will be lost. Anything coming in during the window will be safely queued and delivered automatically once the maintenance is complete. No action is needed on your side. If you have any questions ahead of Wednesday, please don't hesitate to reach out.

Essential Maintenance on Virginia1

May <var data-var='date'> 7</var>, <var data-var='time'>01:30</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 7</var>, <var data-var='time'>00:30</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:32</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the Exxon cluster on 6th May 2026 between 23:30 and 00:30 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the Exxon cluster

May <var data-var='date'> 7</var>, <var data-var='time'>01:00</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 7</var>, <var data-var='time'>00:00</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:29</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the ST cluster on 6th May 2026 between 23:00 and 00:00 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the ST cluster

May <var data-var='date'> 7</var>, <var data-var='time'>00:30</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>23:30</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:28</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the BP cluster on 6th May 2026 between 22:30 and 23:30 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the BP cluster

May <var data-var='date'> 7</var>, <var data-var='time'>00:00</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>23:00</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:25</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will carry out essential maintenance on the Gunvor cluster on 6th May 2026 between 22:00 and 23:00 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the Gunvor cluster

May <var data-var='date'> 6</var>, <var data-var='time'>23:30</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>22:30</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:23</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will carry out essential maintenance on the Oldendorff cluster on 6th May 2026 between 21:30 and 22:30 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the Oldendorff cluster

May <var data-var='date'> 6</var>, <var data-var='time'>23:00</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>22:00</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:17</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will carry out essential maintenance on the Inchcape cluster on 6th May 2026, between 21:00 and 22:00 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the Inchcape cluster

May <var data-var='date'> 6</var>, <var data-var='time'>22:30</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>21:30</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:14</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will carry out essential maintenance on the SaturnV cluster on 6th May 2026, between 2030 and 2130 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on SaturnV

May <var data-var='date'> 6</var>, <var data-var='time'>21:00</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>20:00</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>21:09</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the Jera cluster on 6th May 2026 between 19:00 and 20:00 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on the Jera cluster

May <var data-var='date'> 6</var>, <var data-var='time'>18:00</var> BST Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>17:00</var> BST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 1</var>, <var data-var='time'>20:54</var> BST Scheduled - To ensure continued performance and reliability, our Engineering team will carry out essential maintenance on the Rio Tinto cluster on 6th May 2026, between 1600 and 1700 UCT. As part of this work, the actual downtime will be brief - a matter of minutes - and is most likely to occur towards the start of that window. During this time, users may experience difficulties accessing Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our strong service standards.

Essential Maintenance on Rio Tinto

Apr <var data-var='date'>28</var>, <var data-var='time'>19:09</var> BST Resolved - An initial investigation has been completed into the outage that affected some Sedna customers on our Dublin 1 and Dublin 2 clusters earlier today. The disruption was traced to a capacity issue that prevented impacted users from logging in or accessing the platform, with the application unavailable for a 15-minute period on Dublin 1 and two 15-minute periods on Dublin 2. In both cases, our resiliency measures ensured the application recovered automatically. As a precautionary measure, we have adjusted scaling policies on both clusters and temporarily disabled a non-essential feature to reduce load. Our engineering team is continuing the root cause analysis and will implement further improvements to prevent recurrence. Apr <var data-var='date'>28</var>, <var data-var='time'>12:30</var> BST Monitoring - . Apr <var data-var='date'>28</var>, <var data-var='time'>11:30</var> BST Investigating - An application outage was identified affecting some Sedna customers on our Dublin 1 and Dublin 2 clusters between 7:30am and 08:00 am UTC and 9:20am and 09:35 and UTC. During this time, impacted users were unable to log in or access the platform. The issue is being treated as an emergency by our engineering team while service is being restored. We are continuing to monitor the platform closely to ensure stability and will keep you updated as the investigation progresses.

Application Outage: Customers are unable to access Sedna on Dublin 1 & 2

Apr <var data-var='date'>27</var>, <var data-var='time'>08:50</var> BST Resolved - An application outage was identified affecting some Sedna customers on our Dublin 2 cluster. During this time, impacted users were unable to log in or access the platform. The issue was treated as an emergency by our engineering team and has now been resolved. A root cause analysis is currently underway, and Sedna’s engineering team is actively investigating to determine the underlying cause and prevent recurrence.

Application Outage: Customers are unable to access Sedna on Dublin 1

Apr <var data-var='date'>20</var>, <var data-var='time'>13:06</var> BST Resolved - This morning (between approximately 10:10 and 10:40 UTC), we experienced a performance degradation of email ingress and egress in our Dublin2 and Dublin3 clusters. This issue was brought to our attention by automated alerting built on our internal observability tooling. Application scaling policies increased capacity during this period, reducing its overall length. This was a repeated issue, seen previously on 16th March, caused by abnormally expensive processing of a set of malformed emails sent to a large number of recipients. Mitigation steps we have taken so far have unfortunately not been sufficient to avoid a recurrence, and as such, we will continue to investigate to improve resilience.

Mail Ingress & Egress Delay : Dublin2, Dublin3 clusters

Mar <var data-var='date'>23</var>, <var data-var='time'>10:45</var> GMT Resolved - The issue causing elevated CPU load in the Dublin2 cluster has been identified and mitigated. We have implemented measures to prevent recurrence. All services have resumed and should now be operating normally.

Dublin2 Performance Issues

Mar <var data-var='date'>18</var>, <var data-var='time'>13:09</var> GMT Resolved - Correct measures was put in place once delay was noted by our engineers. This has been monitored and we can confirm that service has been restored and is working as expected. Mar <var data-var='date'>18</var>, <var data-var='time'>10:48</var> GMT Investigating - We are investigating reports of delayed mail between 10:20 am and 10:35 am GMT. We have implemented a corrective measure and are seeing normal mail delivery. Our engineering team is actively investigating the cause. We will provide further updates as soon as more information becomes available.

Mail Delay : Dublin 2

Mar <var data-var='date'>16</var>, <var data-var='time'>13:16</var> GMT Resolved - Earlier today (from 11:31 to 12:09 UTC) we experienced a performance degradation of email ingress and egress globally across tenants in our public clusters. This was caused by abnormally expensive processing of a set of malformed emails sent to a large number of recipients. We will continue to monitor and investigate how our systems can be updated to improve resilience. Mar <var data-var='date'>16</var>, <var data-var='time'>12:41</var> GMT Monitoring - System appears to be operational. Our engineering team will continue to monitor this from our end. Mar <var data-var='date'>16</var>, <var data-var='time'>12:37</var> GMT Investigating - We are currently investigating an issue affecting mail ingress and egress globally. From 11:30 to 12:00 UTC some customers may have experienced delays or disruptions in email processing. Our engineering team is actively investigating the cause. We will provide further updates as soon as more information becomes available.

Mail Ingress & Egress Delay : Global

Feb <var data-var='date'>12</var>, <var data-var='time'>20:38</var> GMT Resolved - This incident has been resolved, and all back logged messages have been processed Feb <var data-var='date'>12</var>, <var data-var='time'>20:18</var> GMT Monitoring - Clusters are now healthy, and the backlog is being processed, we estimate 30 minutes. Feb <var data-var='date'>12</var>, <var data-var='time'>19:51</var> GMT Update - We are continuing to investigate this issue, and will update every hour until it is resolved. Feb <var data-var='date'>12</var>, <var data-var='time'>18:48</var> GMT Investigating - An outage affecting Sedna’s mail egress and ingress services has been identified on specific infrastructure EU clusters. Affected users are unable to send and receive mail. The issue is under investigation by engineering as an emergency.

Mail Ingress & Egress Outage: Some Customers in EU Clusters unable to Send and Receive Mail

Jan <var data-var='date'>23</var>, <var data-var='time'>07:01</var> GMT Resolved - This incident has been resolved. Jan <var data-var='date'>23</var>, <var data-var='time'>03:00</var> GMT Update - We are continuing to investigate this issue. Jan <var data-var='date'>22</var>, <var data-var='time'>21:00</var> GMT Investigating - Microsoft Outage: Degraded Service Microsoft is currently experiencing degraded service functionality. As a result, recipients using Microsoft mailboxes may not receive emails, and messages sent from Sedna may result in NDRs. Updates on Microsoft’s Service Health Status can be found here: https://status.cloud.microsoft/m365

Microsoft Outage

Jan <var data-var='date'>16</var>, <var data-var='time'>00:15</var> GMT Resolved - This incident has been resolved. Jan <var data-var='date'>15</var>, <var data-var='time'>22:45</var> GMT Investigating - An outage affecting Sedna’s mail egress and egress services has been identified across our Virginia1 Cluster. Affected users may experience delays with sending and receiving mail. The issue is under investigation by Sedna's Engineering team as an emergency.

Mail Flow Delay: Virginia1 Cluster

Jan <var data-var='date'>15</var>, <var data-var='time'>21:30</var> GMT Resolved - This incident has been resolved. Jan <var data-var='date'>15</var>, <var data-var='time'>20:56</var> GMT Update - An outage affecting Sedna’s mail egress and ingress services has been identified on specific infrastructure EU clusters. Affected users are unable to send and receive mail. The issue is under investigation by engineering as an emergency. Jan <var data-var='date'>15</var>, <var data-var='time'>20:55</var> GMT Investigating - We are currently investigating this issue.

Mail Ingress & Egress Outage: Customers in EU Clusters unable to Send and Receive Mail

Jan <var data-var='date'>13</var>, <var data-var='time'>15:10</var> GMT Completed - The scheduled maintenance has been completed. Jan <var data-var='date'>13</var>, <var data-var='time'>15:00</var> GMT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jan <var data-var='date'>10</var>, <var data-var='time'>13:03</var> GMT Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the Singapore 1 cluster on January 13th between 15:00 and 16:00 UTC. As part of this work, a brief service interruption of approximately 10 minutes is expected. During this time, users may be unable to access Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. This maintenance is part of routine platform updates to improve performance, stability, and reliability. We appreciate your understanding and patience as we complete this work and continue to maintain our high service standards.

Essential Maintenance on Singapore 1 Cluster

Jan <var data-var='date'>12</var>, <var data-var='time'>03:10</var> GMT Completed - The scheduled maintenance has been completed. Jan <var data-var='date'>12</var>, <var data-var='time'>03:00</var> GMT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jan <var data-var='date'>10</var>, <var data-var='time'>12:38</var> GMT Scheduled - To ensure continued performance and reliability, our Engineering team will be carrying out essential maintenance on the Dublin 1 cluster on January 12th between 03:00 and 03:30 (BST). As part of this work, a brief service interruption of approximately 10 minutes is expected. During this time, users may be unable to access Sedna. Services will automatically recover once the maintenance is complete, and no data loss or configuration changes are expected. Due to the nature of this maintenance, we’re unable to provide the standard 72-hour notice. We understand this may cause inconvenience and apologise for the short notice. This work is necessary to improve platform performance, and we appreciate your patience and understanding as we complete this maintenance to maintain our high service standards.

Essential Maintenance on Dublin 1 Cluster

Dec <var data-var='date'>10</var>, <var data-var='time'>09:47</var> GMT Resolved - This incident has been resolved. Dec <var data-var='date'>10</var>, <var data-var='time'>09:39</var> GMT Monitoring - Estimated impact window: 08:40–09:05 UTC During this time, mail could not be sent or received in our EU cluster. Service has since fully recovered, and the system is currently healthy. All incoming mail from the affected window has been successfully reprocessed and no messages were lost. Any outbound messages that could not be delivered would have generated an NDR; if you received one, please resend the message. We are investigating the root cause and will provide further updates. In the interim, if you notice any mail delivery failures or unexpected behaviour, please let us know.

Mail Ingress & Egress Outage: Customers in our EU Cluster unable to Send and Receive Mail

Nov <var data-var='date'> 3</var>, <var data-var='time'>22:30</var> GMT Completed - The scheduled maintenance has been completed. Nov <var data-var='date'> 3</var>, <var data-var='time'>22:00</var> GMT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov <var data-var='date'> 3</var>, <var data-var='time'>14:13</var> GMT Scheduled - Dear Customers, We will be performing urgent maintenance this evening to complete further RDS optimisations following recent configuration changes. As part of this work, we’ll be implementing database and infrastructure improvements to enhance overall stability and performance. Maintenance Window Date: Monday, 3 November 2025 Time: 22:00 – 22:30 (UTC) Expected Impact: Brief service interruption of approximately 5 minutes within the 30-minute maintenance window This work is being carried out during the quietest usage period for the cluster to minimise any disruption. Services will automatically resume once the process is complete. We appreciate your understanding while we complete this optimisation work.

Essential Maintenance on Dublin2

Oct <var data-var='date'>27</var>, <var data-var='time'>10:41</var> GMT Resolved - Dear Customers, Mail delivery services have now been restored, and new mail is flowing as expected. Thank you for your patience Oct <var data-var='date'>27</var>, <var data-var='time'>10:38</var> GMT Identified - Dear Customers, We’re aware that some may currently be experiencing issues creating and receiving new mail. Our engineering team is actively investigating and working to resolve the issue as quickly as possible. We’ll provide updates as the engineering team progress on resolving the issue. Next update estimated in 15 mins

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Essential Maintenance on Virginia1

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Sedna Systems Services, Components and Regions

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Essential Maintenance on Virginia1

Essential Maintenance on the Exxon cluster

Essential Maintenance on the ST cluster

Essential Maintenance on the BP cluster

Essential Maintenance on the Gunvor cluster

Essential Maintenance on the Oldendorff cluster

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Is Sedna Systems down?

Sedna Systems status is UP

Lastest published events

Essential Maintenance on Virginia1

Essential Maintenance on the Exxon cluster

Essential Maintenance on the ST cluster

Sedna Systems Services, Components and Regions

Recent Sedna Systems events

Essential Maintenance on Virginia1

Essential Maintenance on the Exxon cluster

Essential Maintenance on the ST cluster

Essential Maintenance on the BP cluster

Essential Maintenance on the Gunvor cluster

Essential Maintenance on the Oldendorff cluster

Get your FREE account now,5 monitors included!

Get your FREE account now,
5 monitors included!