All systems are operational
Maintenance
US IMAP email server downtime

On 22 July 2026 at 10:00 am US/Central time (UTC -5) one of our US IMAP email servers will be shut down for infrastructure maintenance. The server will be offline during the maintenance and the expected downtime is 6 hours.

Affected customers will be notified individually via email.

No incoming mail will be lost while the server is offline. Mail that arrives during the maintenance will be deferred and delivered once the mail server is back online.

We realize that the timing of this relocation is not ideal. If you have business-critical mailboxes and would like them to be available during the maintenance then please email support@opalstack.com or reply to this message to make arrangements to have your mailboxes migrated to a different IMAP server prior to the scheduled maintenance date.

If you have any questions or concerns regarding this maintenance then please email the Opalstack support team for assistance.

Past Incidents

29th April 2020

No incidents reported

28th April 2020

No incidents reported

27th April 2020

No incidents reported

26th April 2020

No incidents reported

25th April 2020

No incidents reported

24th April 2020

Web: Dallas Apache was not responding on Opal4

The Apache service on Opal4 was not responding for approximately 1 hour today beginning 18:23 UTC.

The problem was that the Apache service had hit its configured ServerLimit which meant that no further Apache processes could spawn to handle requests. That has been corrected and the service is online now.

We're now investigating the root cause and also looking into why our own monitoring systems did not alert us to this condition.

  • The root cause appears to have been a misconfigured customer application. We've corrected the configuration and have updated our monitoring system to alert us when Apache approaches its configured limits.

    • 23rd April 2020

    No incidents reported