All systems are operational
Maintenance
Scheduled network maintenance for opal3 and opal8

On 20 August 2026 between 11:00am and 4:00pm PDT (UTC-7) our data center team will be upgrading the racks that host the following servers:

  • opal3.opalstack.com
  • opal8.opalstack.com

During the 5-hour maintenance window, network connectivity to the affected servers will be interrupted for up to 1 hour during which websites and other services hosted on the servers will be unavailable.

Email and DNS services will not be affected.

The hosting control panel will remain online, but will be unable to apply changes to your services until connectivity to the server is restored.

Affected customers who would like have their services relocated to a different server prior to 20 August 2026 should contact the Opalstack support team to make the necessary arrangements.

Scheduled US IMAP email server downtime

On 26 August 2026 at between 11:00 am and 4:00 pm US/Pacific time our network team will be performing infrastructure maintenance. During this 5-hour window, network connectivity to one of our US IMAP/POP3 email servers will be interrupted for up to 1 hour.

As a result, some customer mailboxes will be unavailable for up to 1 hour during the network interruption. Customers who will be impacted by the interruption have been emailed directly.

No incoming mail will be lost during the interruption. Mail that arrives during the interruption will be deferred and delivered once connectivity to the mail server is restored.

Email forwarding and SMTP services will not be affected, however messages sent via SMTP during the interruption will not be stored as sent mail in IMAP folders on the server.

We'll update our status page at http://status.opalstack.com/ at the beginning of the maintenance window. To be informed of system status updates automatically please subscribe at https://status.opalstack.com/subscribe.

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

Past Incidents

17th May 2021

Email: USA Temporary SSL problem in US mail system

At approximately 06:00 UTC on 17 May 2021 we inadvertently pushed the wrong set of SSL certificates to our US mail system.

Customers who attempted to access the mail system during that period may have seen certificate warning messages and would not have been able to access their mail.

The problem was fixed approximately 30 minutes later and the mail system has been working normally since that time. No incoming or outgoing mail was lost during the incident.

If you are still seeing a certificate error while attempting to use the US mail system then please restart your mail client and/or reboot your computer. If the problem persists then please contact Opalstack support for assistance.

16th May 2021

No incidents reported

15th May 2021

No incidents reported

14th May 2021

No incidents reported

13th May 2021

No incidents reported

12th May 2021

Email: Germany German SMTP IP range on MS block list

We've received some reports that outlook.com and other Microsoft mail services are blocking smtp.de.opalstack.com.

We're investigating now and will follow up when we have more info.

  • Microsoft is now accepting mail from smtp.de.opalstack.com.

  • We've identified and corrected the cause of the block, and have passed our findings along to Microsoft with a request to delist the German SMTP address.

    We'll update this post when Microsoft have confirmed that the server is no longer on the block list.

    • 11th May 2021

    No incidents reported

    10th May 2021

    Web: San Francisco Opal8 not responding

    Opal8 (shared server in San Francisco) is currently not responding. We're looking into the issue and will follow up here when we have more info.

  • Repairs are complete and Opal8 is back online.

  • Opal8 is now down for repair. The expected downtime is 30 minutes.

  • The server has remained stable since it came back online after the initial incident.

    We're now waiting on the data center team to bring down the server for repair.

  • Opal8 has a faulty memory module. We're now scheduling a repair with the data center team.

  • Opal8 is back online after an unexpected reboot. We're still investigating.