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Exchange is 10 years old!

Seems like yesterday that Exchange 4.0 hit the market. In March of 1996 Exchange 4.0 was released. I thought I would give you a link for the geeks among you that have been along for the ride and for those that go even further back to ALL-IN-ONE, MailWorks,
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Why does Exchange use dynamic ports for the Information Store, et cetera?

Not so long ago, we had this question as a blog subject suggestion, so here it is: Exchange implements many of its services through the remote procedure call (RPC) facilities provided by Windows. RPC is not limited to any particular transport (e.g. TCP/IP).
Posted by Exchange | 3 Comments

Let's talk about Server Extension Objects (SEO)

I’ve worked for Microsoft for about 8 years, all in the Exchange group, and I really enjoy it. The people who work here are bright, self-motivated, and we have the resources we need to get our jobs done. It feels great to ship world-class products that
Posted by Exchange | 5 Comments

Outlook Web Access - A catalyst for web evolution

"The Exchange Web Client" was the first web email client produced by Microsoft. It had an interesting green and black color scheme but it did most of the basic needs for doing messaging. We didn't have enough time to add calendaring support in the first

How does your Exchange garden grow?

One question we often get asked when talking to customers contemplating an Exchange upgrade or a switch from a competitor’s mail system is, "how many users per server can Exchange handle?" Nowadays, that’s an open question - it very much depends on what

The Development History of the Microsoft Exchange Server Best Practices Analyzer Tool

We’ve received several requests on the tools newsgroup for the history of the development of ExBPA, so here it is. The concept for such a tool has been around for several years, and there have been a few prototypes created previously. For one reason or
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Why we named a bit in the directory after BillG

The billg bit or the DoNicknameResolution bit is a setting in the Active Directory that controls how Outlook ambiguous name resolution (ANR) works. Normally, when resolving a name in Outlook, a query is done against the AD using the string passed in.
Posted by Exchange | 8 Comments

So why on Earth did you do that stupid 'push notification' thingy in Exchange, and why is it so NAT unfriendly?

JC Hillerman wrote a comment in on my bio: I heard that Exchange was purchased by Microsoft, but it seems clear that you were working on new development. Maybe it was just the MTA that was purchased? I also heard that Exchange was initally written in
Posted by Exchange | 6 Comments
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Why is OOF an OOF and not an OOO?

Here’s an interesting historical question - when we say Out of Office, why does it sometimes get shortened to ‘OOF’? Shouldn’t it be ‘OOO’? Inside Microsoft, ‘OOF’ means not just the message which says you’re
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Sometimes good intentions hurt

When Exchange 2000 was released one of the goals was to allow third-party developers to write custom applications that they could use to automate mailing, CDO for Exchange was build into Exchange 2000, and CDOSYS was distributed with Windows. These were

Exchange 2000 ACL mechanism

This is part two of a three part series. See part one here . When we set out to design the Exchange 2000 NT ACLs, the biggest task we faced was to determine what the correct values for the NT access rights should be. We knew we had to be compatible with
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Looking Back on Testing

It’s amazing how much can change in six years. Test has always been an area of constant innovation, creative problem solving, and process improvement. As a result of this continuous improvement we have dramatically changed our work lives as testers.
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Speaking of the Melissa virus….

As an Exchange Support Engineer, I dread the onset of any virus that will affect our customers. However, given that my name is Melissa, this virus was particularly painful for me! Imagine answering a support call during this outbreak “Thank you
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Melissa, ISSCAN, and the birth of the VSAPI

ISSCAN is a utility I created several years ago, and it is unique in my Microsoft experience in that it was designed, written, tested and shipped in a span of about 24 hours. Now, I’ve worked at small software firms in the past where releases of
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Me Too!

One way of telling how long a Microsoft employee has been working here is their reaction to the phrase “Bedlam DL3”. Just for grins, I was at lunch in the cafeteria with a bunch of co-workers and I blurted out, totally out of context: “Bedlam
Posted by Exchange | 34 Comments
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