Tony Redmond's Exchange Unwashed Blog

Sep 1, 2014
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Microsoft fixes hybrid connectivity problem in Exchange 2013 CU6 2

Microsoft has published KB2997355 to provide a script fix for the issue that plagued Exchange 2013 administrators when they found that they couldn’t use the Exchange Administration Center (EAC) to manage Exchange Online mailboxes after deploying Exchange 2013 CU6....More
Aug 30, 2014
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Exchange 2013 CU6 hybrid and co-existence bugs cause administrators to despair 1

If you are a regular reader of this blog, you can’t say that you haven’t been warned to test newly released cumulative updates before you deploy them into production....More
Aug 28, 2014
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OWA bug compromises item preservation for litigation and in-place holds

Microsoft has confirmed that a bug in Outlook Web App (OWA) can be exploited to compromise in-place or litigation holds. The bug means that a user can remove items from their mailbox without Exchange tracking that action and preserving copies of the items. All other clients work properly – the problem is only with OWA. However, it affects Exchange Online (Office 365) and all supported versions of Exchange 2013, including the recently released cumulative update 6 (CU6)....More
Aug 26, 2014
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Exchange 2013 Cumulative Update 6 begins to address public folder scalability

The release of Microsoft Exchange Server 2013 Cumulative Update 6 (CU6 – build 995.29) comes as the summer vacation period winds down. Still, attention might still be more focused on the pressing matters of vacation, cold beer, and ice cream and not on having to upgrade email servers....More
Aug 22, 2014
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TechEd Europe session selection not good news for on-premises customers or independent voices 5

Those of you who plan to go to TechEd EMEA in Barcelona at the end of October might be disappointed to discover the lack of independent advice that exists at the conference regarding Exchange and associated technology. The Exchange MVPs, many of whom live in Europe, are also disappointed because Microsoft declined every MVP-led session that was proposed, most of which were submitted by speakers with strong track records of successful presentations at different events....More
Aug 21, 2014
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Another opportunity for automation in eDiscovery for SharePoint 2013 and Exchange 2013

Why is it that anything that involves co-operation between Exchange 2013 and SharePoint 2013 is quite so hard to setup and fragile to manage? It’s almost as if the two products are the result of work done by two very different development groups rather than part of one great big happy “Office Servers” family....More
Aug 19, 2014
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The joy of an impractical 100,000 Exchange 2013 mailbox configuration 1

Last November, I wrote about some configurations advanced by Hitachi and IBM that appeared to meet the storage needs of 120,000 Exchange 2013 mailboxes. In a nutshell, I didn’t think too much of the configurations because they featured Database Availability Groups (DAGs) that deployed only two copies of each mailbox database. That just doesn’t make sense in any way if you want to run such a large Exchange deployment....More
Aug 14, 2014
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Rapid development in Office 365 reflects current software engineering practice

The old carefully-paced world of software engineering worked well at a time when everyone accepted that it took time to design, program, test, and ship good software. It is a different matter today when any self-respecting web site is deemed static and perhaps even stagnant if it is the same from one week to the next....More
Aug 13, 2014
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Update causes Outlook 2013 to fail to open archive mailboxes 5

I don’t tend to pay much attention to my archive mailbox. It sits there in the list of resources opened by Outlook but I never really feel the need to go and check that the Managed Folder Assistant (MFA) is moving items to the archive in accordance with my retention policy. It just happens, and like most users, I just let it happen and forget all about the items that accumulate in those archive folders....More
Aug 12, 2014
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2TB seems like such a good size for a mailbox database 3

I am sometimes asked about how large an Exchange mailbox database should be allowed to grow. In an era of ever-swelling mailboxes, it’s a good question. After all, if you’re going to indulge users with 100GB mailbox quotas, you have to figure out where those mailboxes will be stored....More
Aug 7, 2014
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Why an Office 365 update caused the Exchange 2013 HCW to crash 1

The publication of KB2988229 on July 30 and an accompanying EHLO post provided formal acknowledgement that a problem exists with the Exchange 2013 Hybrid Configuration Wizard (in all supported versions of the product)....More
Aug 5, 2014
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Exchange 2007 approaching the end of the line - slowly 1

Alongside the release of Exchange 2013 CU5 on May 27, Microsoft also issued roll-up update 6 (RU6) for Exchange 2010 SP3. The new update contains no security fixes and should therefore be relatively straightforward to put into production, subject to the normal caveat of test before deployment....More
Jul 31, 2014
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Office 365 by the numbers - an ever-increasing trajectory

Last November, I attempted to figure out how many Office 365 paid subscribers Microsoft had signed up on the basis of their reported $1.5 billion annual run-rate (at the time). I concluded that some 15.625 million paid subscriptions were in place on the basis of an average $8/month fee....More
Jul 29, 2014
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Yammer - a technology still looking for a solution? 3

The news that Yammer co-founder David Sacks is leaving Microsoft comes as no surprise. It is the nature of the beast that those who create a technology usually leave soon after that technology is bought and absorbed by a larger company. After all, they have lost control of their creation and have been richly compensated for that fact. Moving on to a new challenge is a natural reaction....More
Jul 24, 2014
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Lingering entries for long-deleted servers

Another post, another whinge about something that really should be fixed in Exchange 2013....More
Jul 22, 2014
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The changing nature of email NDRs

We’ve all received NDRs, or non-delivery reports, the way that email servers attempt to be friendly to users when informing them that their email has not been delivered. NDRs have been with us since the very early days of email and several Internet Task Force (IETF) Request for Comments (RFCs) have addressed the need for email servers to generate NDRs in a common format. Given the use of SMTP as the de facto email connectivity standard for many years now (does anyone still use X.400?), you’d expect that NDRs would be a well-rounded feature of any self-respecting email server....More
Jul 21, 2014
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Challenges await as Microsoft dumps MEC, TechEd (and other conferences) for a mega-event 4

Microsoft has announced their intention to run a unified technology event in Chicago in the first week of May, 2015. The new event will replace the previous Lync, SharePoint, Exchange (MEC), Management Summit, TechEd and Project conferences. In short, it’s the mega-conference, a new event that combines technology updates for all of the Office servers plus MMS, which seems like a curious add-on to the Office fold....More
Jul 17, 2014
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Protect users by suppressing Outlook's conflict resolution reports

Most of the time Outlook just gets on with the job of sending and receiving email. But then from time to time some odd items appear, like conflict resolution reports....More
Jul 15, 2014
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Outlook Apps - a new approach worth considering 1

A conversation with a Microsoft engineer at the Microsoft Exchange Conference caused me to wonder if Outlook apps are being overlooked by many companies as they seek to extract value from their deployments. Or indeed, to justify an upgrade to the latest generation of Microsoft Office technology....More
Jul 14, 2014
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Microsoft Learning insults Exchange professionals with simply awful video 3

After viewing their latest video, posted on July 14, that announced that the Exchange 2013 certification exams have been updated for Exchange 2013 SP1, I conclude that the people running whatever part of Microsoft Learning (MSL) that is responsible for this production have been exposed to some potent mind-altering material....More
What's Tony Redmond's Exchange Unwashed Blog?

On-premises and cloud-based Microsoft Exchange Server and all the associated technology that runs alongside Microsoft's enterprise messaging server.

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Tony Redmond

Tony Redmond is a senior contributing editor for Windows IT Pro and the author of Microsoft Exchange Server 2010 Inside Out (Microsoft Press) and Microsoft Exchange Server 2013 Inside Out: Mailbox...
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