Tony Redmond's Exchange Unwashed Blog

Jul 8, 2014

Security Design Change for Office 365 Public Folders Causes Inbound Email to NDR 1

Last week I wrote about two changes initiated by Microsoft without the benefit of good customer communication. Here’s another example from Office 365 that came to light recently, brought to my attention by David Petree of AppRiver....More
Jul 3, 2014

Two recent Microsoft changes affecting Office 365; one reversed, one partially 2

The law of unintended consequences was in full flow lately when two well-intended actions provoked some interesting reactions....More
Jul 1, 2014

Directory flaw led to Exchange Online outage 2

As we all know, Exchange Online experienced a 7-hour outage that affected North American customers on June 24. The episode followed an outage for Lync Online the previous day....More
Jun 26, 2014

Why running Exchange on Azure is an unattractive proposition

Well over a year ago, I wrote about the first reports of running Exchange 2013 on Azure and noted that this might represent a future deployment option....More
Jun 24, 2014

Keeping up to date with what's been happening with Set-MailboxDatabase

No matter how long you work with software, it’s impossible to master every possible detail, especially when you’re talking about a complex product like Exchange 2013. Which brings me to reveal two small, but to me, interesting changes that have occurred recently. I say “recently” because I am not quite sure when Microsoft made the changes, but that hardly matters in a world when frequent updates are expected....More
Jun 19, 2014

Is Microsoft really saying "don't virtualize" Exchange? 4

Microsoft’s embrace of simplicity in all things to do with Exchange 2013 might have the unexpected side-effect of turning customers away from virtualization. If so, it will reverse a trend that had gathered pace ever since Microsoft first saw the light of the virtual day after Hyper-V appeared....More
Jun 17, 2014

Nothing to fear in MAPI over HTTP 2

Microsoft’s decision to move away from the time-honoured RPC interprocess connection mechanism and replace it with a new approach where Outlook clients make MAPI calls over HTTP connections in Exchange 2013 SP1 has caused a bit of fuss and bother....More
Jun 12, 2014

OWA for Android debuts but leaves on-premises customers waiting

The Twittersphere erupted yesterday after Microsoft made a “pre-release” version of the long-awaited Outlook Web App (OWA) for Android available in the Android store....More
Jun 10, 2014

Encrypting email in transit makes a heap of sense

Mainstream media such as the Washington Post (which, as someone living in Ireland, is high on my daily must-read list) got quite excited about Google’s recent announcement that they will name and shame email domains who don’t encrypt inbound and outbound SMTP connections via Transport Layer Security (TLS)....More
Jun 5, 2014

How flawed firmware can really give your DAG some replication headaches 3

The IBM service bulletin titled “Affected ServeRAID controllers inadvertently supported hard drive sector size 512e and 4k - IBM Servers” has got to be a masterpiece of how to obscure a support statement. I’m sure it is written by someone who is awfully literate in all aspects of storage but it sure does an excellent job of disguising the issues in a mass of incoherent text....More
Jun 3, 2014

The cyborgs are coming or how Microsoft "Clutter" will help you to do a better job of processing email 2

I’m a big fan of machine learning. That is, if it helps users work smarter. A long time ago (1988), I worked on an artificial intelligence project to develop the first set of rules to automatically process messages as they arrived into user inboxes. That work was on VAX/VMS systems running ALL-IN-1 with a LISP program running in the background to interpret new messages as they arrived. The project eventually resulted in U.S. and European patents....More
May 29, 2014

Learning about DLP in SharePoint Online - a most unusual activity for an Exchange person

The fact that Microsoft has posted 469 recordings on their Channel 9 site from the recent TechEd North America event is a wonderful thing. I don’t particularly care for the scale of TechEd and the chance to go back for a conference so soon after MEC (sessions from that event are also online) seemed like overkill, so I didn’t make the journey to Houston....More
May 27, 2014

Exchange 2013 CU5 - the totally unremarkable update (in a good way) 2

Microsoft has just released Exchange 2013 CU5. It seems like this is the first version that is what you'd expect a cumulative update to be. No new features, just improving the fit and finish of the server, fixing some bugs, and polishing Exchange up slightly. What a relief to have an update that works first time and improves the quality of the product....More
May 22, 2014

How new stuff is introduced through Office 365 Change Management

The detail involved in running Office 365 is fascinating, at least for nerds like me. I guess that must be why I enjoyed the “Running Exchange Online” session at MEC so much....More
May 20, 2014

Microsoft pulling back on some MEC commitments and a rather delicious rumour 2

Listening to last week’s edition (#362) of the “Windows Weekly” (featuring Paul Thurrott and Mary-Jo Foley) broadcast, I was intrigued by the rumor that Microsoft will make a trial version of the next major version of on-premises Exchange at TechEd EMEA in Barcelona (October 28-31)....More
May 15, 2014

The case of the apparent log roll

“Log roll” is a technique used in Exchange 2007 CCR/SCR clusters to force replication between cluster members at times when not much activity is occurring on the servers. When servers are busy, log replication happens regularly as transactions fill the 1MB logs and force Exchange to close off the active log, create new logs, and replicate. It’s a virtuous cycle....More
May 13, 2014

If Gmail had a reasonable client (like Outlook) 2

I don’t know who Microsoft invites to attend their regular “Plugfest” events when they discuss protocols and interoperability with Microsoft products, but I hazard a guess that not many invitations wing their way to the Googleplex in Mountain View. This thought came into my mind when I considered why Gmail still struggles to break into many corporate environments....More
May 8, 2014

The irritation of mailbox database pings and event 6002

Continuing a campaign to rid Exchange of annoying and silly details (like the error message discussed recently), my next target is event 6002, which is logged on an ongoing and continuous basis by “MS Exchange Mid-Tier Storage” (whatever that is)....More
May 6, 2014

Why you absolutely cannot upgrade Windows on an Exchange server

In September 2012, just before the RTM version of Exchange 2013 shipped, I wrote about choosing between Windows 2008 R2 and Windows 2012 as the operating system for Exchange 2013 deployments. At that time I concluded that an equal case could be made for either version of Windows, but that it made sense to select the more modern version because it would last for the supported lifetime of Exchange 2013. As we’ve seen with Exchange 2003, that could be a decade or more....More
May 1, 2014

Strong speaker line-up for Exchange Connections 2014

We are very fortunate that a great group of industry experts submitted session proposals for Exchange Connections 2014, which takes place at the Aria Hotel in Las Vegas on September 15-19. All the reports I hear indicate that the Aria offers much superior conference facilities to the Mandalay Bay, which has been the home of Connections for a decade and I'm looking forward to seeing what a modern top-of-the-range facility delivers....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.


Tony Redmond

Tony Redmond is a senior contributing editor for Windows IT Pro. His latest books are Office 365 for Exchange Professionals (eBook, May 2015) and Microsoft Exchange Server 2013 Inside Out: Mailbox...
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