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

2nd April 2024

Email: USA Delays in US incoming mail

At this time there is a high load condition on one of our US IMAP servers which is a variety of issues for some US mail customers including:

  • Delays in the receipt of incoming mail
  • Slow performance in IMAP mail clients
  • Slow performance in the Opalstack US webmail system

We're working to mitigate the problem at this time and will update this post when more information is available.

  • All pending incoming US mail has been delivered.

  • The high load condition is resolved and the backlog of pending mail is being delivered.

    • 1st April 2024

    No incidents reported

    31st March 2024

    No incidents reported

    30th March 2024

    Web: San Francisco Opal14 not responding

    Opal14 (SFO shared hosting) is currently not responding. We're investigating at this time.

  • There was a second incident of the same type of problem but on a different site operated by the same customer. We've mitigated the problem to prevent it from occurring again and the server is stable at this time.

  • Opal14 is back online. The cause of the issue was high Apache RAM usage which resulted from a bad rewrite rule in a customer site. We've isolated the site and are working with the customer to correct the problem. We'll continue to monitor.

    • 29th March 2024

    No incidents reported

    28th March 2024

    No incidents reported

    27th March 2024

    No incidents reported