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Increase in virus traffic
We saw a sharp increase in the amount of viruses caught by our MailSweeper servers yesterday, double the usual volume. Here are the top 10 viruses that we’ve caught so far this month: 1 –...
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Layers of defence
Due to the critical nature of our email usage a major virus outbreak on our Exchange servers would probably cost me my job. So to help me sleep easier at night I use layers of defence. We run one...
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Real-time Black Lists
It’s official, I hate RBLs. For sometime I’ve tolerated and indeed used well run and respected lists like SURBL but then SURBL works differently to the rest. SURBL does not block listed hosts but...
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Customise Exchange 2003 NDRs?
I was asked today if it’s possible to customise the text in the non-delivery reports that Exchange 2003 sends. To the best of my knowledge this can’t be done if you are just using Exchange. However, if...
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Using Telnet to troubleshoot SMTP connectivity
There are situations where you may want to manually test SMTP connectivity. Some of the common ones for me are: When messages are queuing for delivery to or being rejected from a particular domain....
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