Some systems are experiencing issues
Maintenance
Scheduled DE IMAP/POP3 email server downtime

On 24 September 2026 at between 07:00 am and 10:00 am UTC our network team will be relocating one of our mailbox storage servers to a new location within the data center.

The server will be offline during the relocation. As a result, some customer mailboxes will be unavailable for up to 3 hours during the relocation. Affected customers will be notified directly via email.

Affected customers will not be able to check their email for affected mailboxes during the relocation.

No incoming mail will be lost during the relocation. Mail that arrives during the relocation 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 relocation will not be stored as sent mail in IMAP folders on the server.

Customer websites will not be affected by the relocation.

We realize that the timing of this relocation may not be ideal. Customer who would like to have their mailboxes migrated to a different server in advance of the server relocation should contact the Opalstack support team to make the necessary arrangements.

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 email our support team and someone from our team will get back to you as soon as possible.

Past Incidents

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.

  • 9th May 2021

    No incidents reported