Archive for the ‘Uncategorized’ Category

Announcing Service Window Friday 23rd of June: The everlasting race to get rid of old infrastructure..

Posted on: June 16th, 2023 by

The Kolab Now Staff is going to update parts of the platform to get rid of even more old infrastructure, and to ensure the best possible solution for users. Therefore we declare a service window on:

Friday 2023-06-23 at 08:00 UTC until 13:00 UTC.

> Continue Reading

Announcing Service Window Friday 9th of June: Getting rid of even more old infrastructure..

Posted on: May 31st, 2023 by

The Kolab Now Staff is going to update parts of the platform to get rid of even more old infrastructure, and to ensure the best possible solution for users. Therefore we declare a service window on:

Friday 2023-06-09 at 08:00 UTC until 12:00 UTC.

> Continue Reading

Announcing Service Window: Caching infrastructure..

Posted on: April 17th, 2023 by

Lately we have had reports from users of the Kolab webclient who saw a variety of issues such as: login issues, some data entries being hidden and showing up again and folder creations failing. As this was seriously affecting the reliability of the webclient, we put the deployment of new features on hold to investigate the root cause of those issues.

> Continue Reading

How to prevent deleted e-mails from disappearing permanently

Posted on: March 27th, 2023 by

Last week our support team reported interestingly some similar questions from unrelated users circling around the topic: “I accidentally deleted some e-mails. Can I get them back?”

As often in complex support situations, the answer to this question is: It depends.. 🙂

Users were pointed to this knowledge base note. This answered the questions, though with some confusion. In this post we will lay out the options.

> Continue Reading

Incident Report: Various Types of Failure Symptoms

Posted on: March 3rd, 2023 by

On Friday March 3rd, 2023, from approximately 01:00 UTC to approximately 14:40 UTC, numerous users of our service experienced a variety of issues.

A complete listing of the symptoms experienced is infeasible at this time, but logins will have failed to the web-client interface, the cockpit interface, and people will have not received emails in time.

> Continue Reading

Update on the ongoing performance issue

Posted on: February 2nd, 2023 by

During the last 2 days Kolab Now has experienced a serious performance degradation issue. Users see that logins to- and operations in the webclient is taking a long time, and users connecting via desktop or mobile clients might not be able to perform synchronizations.

In the end of Wednesday it was thought that the root cause was found, and many users saw better performance for a while, but Thursday morning the performance dropped back to unacceptable levels.

> Continue Reading

Announcing Service Window: More replacement of old infrastructure..

Posted on: January 20th, 2023 by

This Friday’s service window was being executed well, and while assisting in replacing some old infrastructure, it opened opportunities to proceed down the same track. With that in mind, the Kolab Now operations team will perform more maintenance on the infrastructure of the Kolab Now platform on Friday, 27th of January 2023 at 10:00 UTC.  The update will move more of backend services to newer infrastructure. No new features visible to end users will be enabled during this maintenance.

The service window is expected to last for no more than 4 hours, ending on Friday, 27th of January 2023, at 13:00 UTC.

> Continue Reading

Incident report: ‘Gateway Timed-out’ at login

Posted on: January 14th, 2023 by

On Saturday January 14th, 2023, from approximately 03:47:12 UTC a group of Kolab Now users observed an error stating: “Gateway time-out” when trying to login to the webclient, the dashboard, or connect with any desktop or mobile client. The Kolab Now main page https://kolabnow.com/ and all other services (Support, blog and knowledge base) were available with no issues for these same users.

The issue lasted until approximately 08:04:22 UTC, and was caused by a db server in one of the clusters being stuck in a large operation. The issue caused troubles with the login procedure, but had no impact on the mail flow. No mail was lost or delayed during the incident.

> Continue Reading

Announcing Service Window: The death of old infrastructure..

Posted on: January 13th, 2023 by

On Friday, 20th of January 2023 at 09:00 UTC, the Kolab Now operations team will perform maintenance on the infrastructure of the Kolab Now platform.  The update will move a part of the backend services to newer infrastructure. The updates will bring more stability and better manageability to the backoffice systems. No new features visible to end users will be enabled during this maintenance.

The service window is expected to last for no more than 4 hours, ending on Friday, 20th of January 2023, at 13:00 UTC.

> Continue Reading

The Annual Certificate Refresh

Posted on: January 2nd, 2023 by

Another year past and we needed to again refresh our certificates.

As in previous years, e.g. 2018, 2019, 2020, etc, we rolled over certificates across all systems over the last few days of the year.

The new certificate is in place, and applies to https://kolabnow.com/, imaps://imap.kolabnow.com and smtps://smtp.kolabnow.com.

As in previous years, we publish the fingerprint here:

SHA-256:

FA:2A:BF:A9:F8:FA:67:E7:7B:0D:B2:2C:C2:F2:8B:F8:30:4C:77:84:55:38:02:B4:DD:66:7F:DA:F4:C7:DC:49

SHA-1:

B6:FE:BF:F6:3A:17:CD:E4:2D:02:7F:AF:C9:EF:0C:45:32:F9:0A:3B