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

22nd September 2021

No incidents reported

21st September 2021

No incidents reported

20th September 2021

No incidents reported

19th September 2021

No incidents reported

18th September 2021

No incidents reported

17th September 2021

No incidents reported

16th September 2021

Web: Frankfurt Intermittent high load on opal11

Our shared hosting server opal11.opalstack.com in Frankfurt Germany is experiencing an intermittent high load condition which is impacting system performance. We're working to resolve this and will update this post when the issue is resolved.

  • There have been no further issues on opal11 in the past 24 hours so we consider this to be resolved.

  • We've mitigated most of the abusive traffic that's been driving up high load on opal11 and performance should be much better at this time.

    We are still seeing occasional spikes and will continue to investigate.

  • Our investigation into this issue is ongoing. We'll provide more info when it is available.