Microsoft Exchange and Blackberry Server Specialists

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Microsoft Exchange Server and
Blackberry Enterprise Server news, views and fixes.

Real Time Blacklisting

Blacklisting. For some email administrators Blacklists are the greatest weapon against spam. It cannot be denied that they can have a significant effect on the amount of email that your server has to process, and they do meet the primary objective of spam detection - dealing with the email at the point of delivery, therefore  reducing back scatter. They are also free, and once setup require l... [More]

Exchange 2007 SP2 Released

Exchange 2007 SP2 has been released at last. You can download it from here: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=4c4bd2a3-5e50-42b0-8bbb-2cc9afe3216a The service pack is so large because it is the complete installation files. You can install a new server using this download only. Release Notes are : http://download.microsoft.com/download/8/3/E/83E9DB24-004... [More]

Exchange Database Size and Limits

The database of an Exchange server is something that seems to raise a lot of questions with Exchange administrators. Many of the questions appear to be around the size of the database and its limits. This article should help to increase the understanding of the database size and limits. I have also touched on the thorny topic of offline defrags. First some terminology. Where I mention VERSION, t... [More]

Usernames Tried During Authenticated User Attack

Over the weekend one of my clients suffered an authenticated user attack on the SMTP interface of the Exchange 2003 server. This was detected by the monitoring tool I use, HoundDog (http://www.hounddogiseasy.com/referrer.html?code=YNPX) . The attack was unsuccessful, as I have all of the authentication options disabled. However what was interesting was the list of usernames that were tried. Som... [More]

Successful Exchange 2007 Backup Log Sequence

This is for reference really. The events below are the sequence for a successful Backup of an Exchange database on Exchange 2007. It should apply no matter what backup application you are using, as long as it is Exchange aware. When the jobs starts, this is logged:  Event Type:      Information Event Source:      ESE&nb... [More]