Cornerstone Status Page
Mailspike Temporarily Blacklisted UK Email IP
Update - We are continuing to work closely with the vendor to obtain confirmation on the IP delisting request. We will provide the next update as soon as we receive any new information.
Jul 09, 2026 - 02:06 PDT
Update - Cornerstone UK's email sending IPs have been temporarily blacklisted by Mailspike, a community-oriented IP reputation authority, due to a high number of email delivery failures originating from certain customer accounts.
During this time, emails may fail to deliver. This is our top priority, and we are working closely with the vendor to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Jul 08, 2026 - 23:58 PDT
Update - We are continuing to work closely with the vendor to obtain confirmation on the IP delisting request. We will provide the next update as soon as we receive any new information.
Jul 08, 2026 - 22:19 PDT
Update - We remain actively engaged with the vendor and are awaiting confirmation on the delisting. We will continue sharing updates as they become available.
Jul 08, 2026 - 19:23 PDT
Update - We remain actively engaged with the vendor and are awaiting confirmation on the delisting. We will continue sharing updates as they become available.
Jul 08, 2026 - 17:22 PDT
Update - We remain actively engaged with the vendor and are awaiting confirmation on the delisting. We will continue sharing updates as they become available.
Jul 08, 2026 - 15:21 PDT
Update - We remain in contact with Mailspike while awaiting confirmation of the delisting. Further updates will be provided in due course.
Jul 08, 2026 - 12:19 PDT
Update - We’re actively engaging with Mailspike and awaiting their reply regarding our delisting request. Regular updates will be provided until the matter is completely resolved.
Jul 08, 2026 - 09:16 PDT
Investigating - Cornerstone UK's email sending IPs have been temporarily blacklisted by Mailspike, a community-oriented IP reputation authority, due to a high number of email delivery failures originating from certain customer accounts.
During this time, emails may fail to deliver. This is our top priority, and we are working closely with the vendor to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Jul 08, 2026 - 07:17 PDT

About This Site

Welcome to Cornerstone System Status Dashboard!

This page shows the system status for the Cornerstone SaaS environments.
Downtime is when a swimlane is not accessible by 25% or more of our customers by any login method and the incident resides with Cornerstone (rather than the customer's connection). This excludes any planned maintenance , patch or release (please see calendar linked to the bottom left of this page)

The current status column is updated in near-real time to reflect any ongoing production issues.
You can Subscribe to updates via Email/SMS and Web hook by clicking the "Subscribe to updates" option just below the Cornerstone Banner.

Uptime over the past 90 days. View historical uptime.
US SL4 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
AU SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
JP SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
Uptime Operational
90 days ago
100.0 % uptime
Today
UK SL1 (AWS) Partial Outage
90 days ago
99.82 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.9 % uptime
Today
UK SL2 (AWS) Partial Outage
90 days ago
99.82 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.9 % uptime
Today
UK SL3 (AWS) Partial Outage
90 days ago
99.82 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.9 % uptime
Today
UK SL4 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
CDG SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
CDG SL4 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
FRA SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
US SL1 (AWS) Operational
90 days ago
99.99 % uptime
Today
Uptime Operational
90 days ago
99.99 % uptime
Today
Response Time Operational
90 days ago
99.99 % uptime
Today
US SL2 (AWS) Operational
90 days ago
99.99 % uptime
Today
Uptime Operational
90 days ago
99.99 % uptime
Today
Response Time Operational
90 days ago
99.99 % uptime
Today
US SL3 (AWS) Operational
90 days ago
99.99 % uptime
Today
Uptime Operational
90 days ago
99.99 % uptime
Today
Response Time Operational
US SL5 (AWS) Operational
90 days ago
99.99 % uptime
Today
Uptime Operational
90 days ago
99.99 % uptime
Today
Response Time Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Scheduled Maintenance

Release 26.02.00 - CSOD Data Centers at APAC Jul 10, 2026 06:00-07:00 PDT

Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Posted on Jul 06, 2026 - 08:13 PDT

Release 26.02.00 - CSOD Data Centers at EMEA Jul 10, 2026 17:30-20:30 PDT

Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Posted on Jul 06, 2026 - 08:10 PDT

Release 26.02.00 - CSOD Data Centers at US Jul 10, 2026 18:30-21:30 PDT

Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Posted on Jul 06, 2026 - 08:12 PDT
Jul 9, 2026

Unresolved incident: Mailspike Temporarily Blacklisted UK Email IP.

Jul 8, 2026
Jul 7, 2026
All Queued Events Stuck and Delayed
Resolved - All queues have been caught up and after a period of monitoring we are considering this issue Resolved.
Jul 7, 16:04 PDT
Monitoring - The backlog of queued events continues to decrease as events are processed. Our teams are closely monitoring activity to ensure recovery continues to progress as quickly as possible. We will continue to provide updates until the backlog has cleared.
Jul 7, 14:03 PDT
Identified - We are seeing the backlog of queued events begin to decrease. We are working on taking additional action to reduce the backlog more quickly and accelerate recovery. We will continue to provide updates as progress is made.
Jul 7, 13:20 PDT
Investigating - Customers across all swimlanes may experience delayed or stuck processing of queued events and background jobs (i.e., Content Uploader, Emails, Reporting, etc.). We are actively investigating this issue as a top priority, and will provide regular updates until it is fully resolved.
Jul 7, 11:33 PDT
Jul 6, 2026

No incidents reported.

Jul 5, 2026
Schedule Infra Maintenance - APAC
Completed - The scheduled maintenance has been completed.
Jul 5, 08:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 5, 04:00 PDT
Update - We will be undergoing scheduled maintenance during this time.
Jul 4, 19:53 PDT
Scheduled - Please be advised that users may experience temporary service degradation, such as increased latency or brief portal unavailability, while we perform scheduled infrastructure maintenance. We appreciate your understanding and cooperation as we continue to enhance the Cornerstone Cloud Platform with best-in-class features and improved functionality.
Jul 4, 19:51 PDT
Schedule Infra Maintenance - EMEA
Completed - The scheduled maintenance has been completed.
Jul 5, 02:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 4, 20:00 PDT
Scheduled - Please be advised that users may experience temporary service degradation, such as increased latency or brief portal unavailability, while we perform scheduled infrastructure maintenance. We appreciate your understanding and cooperation as we continue to enhance the Cornerstone Cloud Platform with best-in-class features and improved functionality.
Jul 4, 19:47 PDT
Jul 4, 2026
Jul 3, 2026

No incidents reported.

Jul 2, 2026

No incidents reported.

Jul 1, 2026

No incidents reported.

Jun 30, 2026

No incidents reported.

Jun 29, 2026
Intermittent Service Disruption on UK SL production
Resolved - This incident has been resolved.
Jun 29, 05:27 PDT
Monitoring - A fix has been implemented and we are monitoring the results.
Jun 29, 04:26 PDT
Update - We continue to work on the fix for this issue.
Jun 29, 04:05 PDT
Update - Users report issue on Career Site as well. We keep on working on the problem.
Jun 29, 02:13 PDT
Identified - UK swimlanes are experiencing an intermittent service disruption. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Jun 29, 01:49 PDT
Jun 28, 2026
Server Refresh Maintenance - EMEA/APAC/US
Completed - The scheduled maintenance has been completed.
Jun 28, 02:01 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 27, 20:00 PDT
Scheduled - Please be advised that users may experience temporary service degradation, such as increased latency or brief portal unavailability, while we perform scheduled infrastructure maintenance. We appreciate your understanding and cooperation as we continue to enhance the Cornerstone Cloud Platform with best-in-class features and improved functionality.
Jun 26, 07:15 PDT
Schedule Infra Maintenance - US GLX-US RES US PRD
Completed - The scheduled maintenance has been completed.
Jun 28, 02:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 27, 20:01 PDT
Scheduled - Please be advised that users may experience temporary service degradation, such as increased latency or brief portal unavailability, while we perform scheduled infrastructure maintenance. We appreciate your understanding and cooperation as we continue to enhance the Cornerstone Cloud Platform with best-in-class features and improved functionality
Jun 27, 11:32 PDT
Jun 27, 2026
Jun 26, 2026

No incidents reported.

Jun 25, 2026

No incidents reported.

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