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12 May 2008 23:15

New Online Testing Tool from the Microsoft Exchange team

So you have setup your Exchange 2007 server and now wonder whether it works correctly. The DNS changes are in place, the SSL certificate works, but how do you test it? Or your server isn't working correct and you want to test it from an external host...
Posted by Sembee
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14 April 2008 17:20

Why you shouldn't use logos in Signatures

This is another post in my serious of articles on why you shouldn't use certain features in Exchange, even though they are there. As with the other articles, the article does NOT tell you how to enable the feature in question. The other articles in this...
Posted by Sembee
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13 March 2008 19:45

One morning you find that there is spam in the queues, your server has been blacklisted etc...

One of the worst experiences for an Exchange administrator is to come in one morning and find that either email is being blocked, the queues are long or the users are getting NDRs saying that the server is blacklisted. This seems to result in confusion...
Posted by Sembee
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03 March 2008 13:15

Why You Shouldn't Enable the POP3 Server

This is another post in my series of articles on why you shouldn't use certain features in Exchange, even though they are there. As with the other articles, the article does NOT tell you how to enable the feature in question. The other articles in this...
Posted by Sembee
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26 July 2007 12:50

Out of Office Messages and Email Discussion Lists

As you would probably expect, I am a member of a number of email discussion lists based around Microsoft Exchange. These include the lists at Sunbelt Software, msexchange.org (via freelists), Swinc.com and some others. However what always surprises me...
Posted by Sembee
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25 June 2007 18:45

Community Event Follow Up

On the 21st June 2007 a UK based Exchange User group called MMMUG ( http://www.mmmug.co.uk/ ) held a community event hosted by Microsoft. This was also attended by some of the other UK user groups. I attended and assisted with a the breakout sessions...
Posted by Sembee
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23 April 2007 23:45

Problems with Email Delivery to Hotmail/MSN?

There have been increasing number of posts on forums about problems with email delivery to Hotmail/MSN domains in the last few weeks. As the numbers seemed to be higher than usual, I made some enquiries and received a response which I will summarise here...
Posted by Sembee
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19 February 2007 21:45

Routing Groups and SMTP Virtual Server Issues

When you are carrying out many installations and migrations, it is too easy to presume that a site is setup in the same way as the others, particularly when a specific technique works every time. When you get a site where it doesn't work in the same way...
Posted by Sembee
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06 November 2006 22:50

Hardware Configuration for Exchange 2003

Despite Exchange 200x being around for over seven years, the question of hardware configuration is still frequently asked and discussed on forums and message boards around the internet. Exchange is a high transactional database, which means it is constantly...
Posted by Sembee
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18 September 2006 22:40

Experiences with Grey Listing

I have heard from many sources that grey listing can be an effective weapon for fighting spam, yet hadn't had an opportunity to try it out. However one of my clients was being hammered hard with spam, with 700+ messages a day being filtered by Intelligent...
Posted by Sembee | 1 comment(s)
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24 April 2006 23:35

Update for Exchange 2003 on Microsoft.com

There is an important update on the Microsoft download site for users of Exchange 2003. It deals with a change in the operation of Internet Explorer following a patent case. The knowledgebase article is here: http://support.microsoft.com/default.aspx...
Posted by Sembee
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05 March 2006 22:55

Self Generated versus Commercial SSL Certificates

A constant theme on many of the Internet forums is the use of self generated SSL certificates versus purchased SSL certificates, particularly when deploying RPC over HTTPS or Outlook Web Access. Many people will advocate that using a self generated certificate...
Posted by Sembee | 1 comment(s)
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23 February 2006 22:45

Exchange in a DMZ

If you are looking for a page on how to put Exchange in to a DMZ, then you have come to the wrong place. This isn't it. Also I am not posting about deploying Exchange in a secure way - at least not in this post. It just covers Exchange in a DMZ. I don...
Posted by Sembee
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