Mobile friendly webmail is here and brings some changes

Posted on: September 2nd, 2019 by

We are happy to announce the coming release of our mobile friendly skin for Kolab Now. From 14th September 2019 on, your webmail will look a bit different. With the new skin, you will finally be able to use Kolab Now webmail with the browser on your phone. Check out our previous post for more information.

The default mail deletion behavior changes

We decided that the switch to the new skin would be a good opportunity also make another much requested change. We change the default way of deleting emails in the webclient.
Going forward, when you click on Delete, mails will be moved to your Trash folder, and you can then decide when to ’empty the trash’. Previously, deleted mails where only marked for deletion and hidden immediately without an obvious way to undo, and the hidden mails stuck around, clogging up your storage quota if they were not expunged. This led to a couple of support cases over the years. After some user testing we decided to go with what people are used to from other email clients and providers.

Our website gets a long needed update

Our website has been out-dated for quite some time so we decided to give it a major overhaul. For now, it is reduced to the bare necessities and we will add more content when needed. It should now be easier to find essential information and get access to support – among other things.

 

Feedback is always appreciated

We hope you like the changes we have been working on. Give us feedback by writing to support@kolabnow.com

Your Kolab Now team

Security Incident: Involuntary Information Disclosure

Posted on: August 22nd, 2019 by

Earlier today, we have received a report where the web client may inadvertently disclose the so-called common name of accounts within the same domain name space.

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Service Window: Independence Day, July 4th

Posted on: June 28th, 2019 by

In what may come as a shock move to some, but is abundantly clear to need to have happened to many much more well informed, Kolab Systems AG, and therefore Kolab Now, is changing the IP space that it uses primarily.

A service window is needed to implement this progression, and this service window is, for now, scheduled early July 4th, 2019, from 05:30 to 07:00 UTC.

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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.

Outlook and return options to LSUB

Posted on: January 9th, 2019 by

A while back, users started to experience issues with IMAP LIST Extension for Special-Use Mailboxes. This to a level where a decision was made to temporarily suspend supporting Special-Use at Kolab Now.

Lately we have found ways to get around the problems that were present back then, and over the change of the year we introduced an update that, among other great improvements, contained these solutions and re-enabled the Special-Use.

Unfortunately, meanwhile Microsoft has also updated Outlook, and their update has changed the return options that Outlook is using with the LSUB command on the IMAP server.

This has caused issues for some users, who connect Outlook to Kolab Now via IMAP. Those users are suddenly not able to see some of their folders and mails in Outlook. The folders are perfectly visible in the web client and in other IMAP clients like mobile clients, Mac Mail and Thunderbird.

While the RFC compliance issue (the LSUB command does not accept a client specifying RETURN options) certainly has been made visible by Microsoft changing the behavior of Outlook, inversely Kolab Now providing an update to the benefit of all other clients has suddenly shown the related Outlook behavior to be faulty.

The root cause of the issue can be narrowed down to the expectations from Cyrus IMAP while parsing the LSUB command. Besides filing an upstream ticket, Kolab Systems has engaged in this issue and is contributing a fix to the Cyrus IMAP code. This fix is now going through test and QA, and should be ready to be deployed to Kolab Now soon.

If you are one of the users, who has problems because you are connecting Outlook to Kolab Now via IMAP, then you can work around the issue by – either using another IMAP client – or by connecting your Outlook to Kolab Now via ActiveSync, until the fix for Cyrus IMAP is ready and deployed.

If you have any questions or concerns in this context, then please contact support@kolabnow.com.

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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