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

24th August 2022

No incidents reported

23rd August 2022

No incidents reported

22nd August 2022

No incidents reported

21st August 2022

No incidents reported

20th August 2022

No incidents reported

19th August 2022

No incidents reported

18th August 2022

Email: USA Slow logins on US SMTP

At this time logins to Opalstack's US SMTP server are running slowly. Customers may see longer message sending times as a result.

We're investigating the issue and will update this post when more info is available.

  • The US SMTP server has remained stable following the upgrade and improved configuration.

  • We've implemented a fix and authentication is working normally at this time. We'll continue to monitor.

  • The original US SMTP is back online. We'll continue to troubleshoot and monitor.

  • We've taken the original US SMTP offline for an emergency upgrade.

  • The second server is online and is slowly picking up its share of the traffic.

    We'll continue to monitor until we're satisfied that this issue is resolved.

  • We believe the issue is higher-than-average mail traffic, so we're adding a SMTP server to the pool to take up some of the load.