Archive for the ‘Uncategorized’ Category

Rate Limits Are A Thing Now

Posted on: April 15th, 2019 by

We’ve been dealing with quite a number of spammers whom register accounts with us, and start spamming third parties.

As you might imagine, our environment is geared toward redundancy and load-balancing and high traffic — hundreds of messages, thousands of recipients, every minute. The capabilities of our infrastructure are therefore in and by itself not limiting the rate at which anyone can send any number of messages to any number of recipients.

But, this is the case no longer per se.

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Incident Report: Cascading Performance Problems

Posted on: March 5th, 2019 by

From last Sunday afternoon onward, up to Monday evening and throughout the Monday night, performance problems have deteriorated the Kolab Now service up to and including services becoming unavailable.

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Another iPhone ‘LIST-STATUS’ issue [FIXED]

Posted on: February 15th, 2019 by

In the beginning of the week we got a list of reports from users of iPhone connected via IMAP. These users reported that they were unable to list their mail folders. You can read about this issue in a previous blog post on this blog.

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Announcing Service Window: Datacenter maintenance..

Posted on: February 15th, 2019 by

Our local Swiss datacenter and internet provider is a great, professional and stable provider of data connectivity and datacenter services. These services however demands updates of infrastructure, and such maintenance work is happening in a planned service window the night between Saturday 23.02.2019 and Sunday 24.02.2019.

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Another iPhone ‘LIST-STATUS’ issue..

Posted on: February 13th, 2019 by

A little more than a year ago, we found and worked around an issue that caused iPhone users to have problems with IMAP connections to Kolab Now. The issue made it problematic for such users to list and read their IMAP folders.

Back then we worked around the issue by suppressing the LIST-STATUS option for IMAP connections, which made everything work for a while.

This week we again started getting a number of reports about similar symptoms from iPhone users, and we of course investigated those reports as fast and appropriate as we always do.

We quickly found, that a change was made in January to fix an issue for  Outlook users, and that one part of that change was – you guessed it – to undo the suppression of LIST-STATUS. Hence, IMAP connecting iPhone users were getting right back into almost the same situation that they were in a year ago.

Where as we have found the root cause of the issue, we seem to be in a catch 22, where we can accommodate Outlook users or iPhone users connecting via IMAP. Of course we are working on a fix that can make it possible to accommodate both groups of users. Updates and news about the issue will be posted here in this blog.

If you need to read mail and list mailfolders on your iPhone before we have fixed the issue, there are at the moment two workarounds:

Should you have any questions or concerns in this context, then please contact Support.

The Kolab Now Team thank you up front for your patience.

Our statistics for 2018

Posted on: December 31st, 2018 by

Our terms of service state there’s basically no way for anyone to get any access to your data without us also being able to talk about the fact it happened, and further down nested in our legal framework outline do we have a list of 3 general types under which individual requests could be filed.

I recall that some place, we also promise to at least publish the statistics. I don’t recall where, but I seem to remember we have. In any case, here’s our summary for 2018.

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A New Gregorian Year, A New Responsive Skin

Posted on: December 29th, 2018 by

The change of the year is always a good opportunity to look back at what has happened, and to make changes for the future. Earlier we have been writing about the work put into the Responsive skin (elastic skin) and it’s now time to enjoy the result we got out of the work that was done.

A version of a responsive skin was available on beta.kolabnow.com/apps for a while, but now it has finally passed QA, and is made available for all Kolab Now users.

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Annual TLS Certificate Refresh

Posted on: December 28th, 2018 by

Our annual certificate refresh is coming up,with our TLS certificates expiring annually in January. December is included for a reasonable grace-period, because services will need to be switched over, which costs time.

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Do not click the link..

Posted on: December 28th, 2018 by

A phishing mail has been sent to some Kolab Now customers. Our Support team was alerted by observant and attentive users, and our Operations team was able to take preventive action before the mail was spread more widely.> Continue Reading

The end of short logins..

Posted on: November 19th, 2018 by

In our ever ongoing effort to improve the service and get rid of legacy, we are again removing old infrastructure and replacing it with new. Where as this is seamless and invisible to some users, we have seen that others are running into – e.g. login issues.

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