Posts tagged as:

security

How to Test Your SPAM Filter

by Dorian on November 2, 2010

Sometimes as email administrators we need to test if the SPAM filter works and is filtering messages. In order to do this we need to send a test message with content that we are sure is rated as SPAM.

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Public Email Addresses Cause a Lot of Spam

by Dorian on October 27, 2010

Is your email address is published on your website on Internet? This might be the reason for a lot of your spam.

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Corporate Antispam Solutions

by Dorian on October 20, 2010

This list contains a list of Corporate Antispam Solutions. These are server oriented solutions and NOT user-end antispam.

The list is open to updates.

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You just got a bounce-back email saying that your email didn’t reach the destination because the recipient doesn’t exist. Nothing unusual, this is something that happens to anybody who is using email regularly; except you didn’t send that email. How could this happen? If you are an email server administrator and many of your users get this kind of bounce-back they all start to complain at once, thinking that your server has been hijacked. What can you do to stop this, and how to reassure your users that you haven’t been hijacked?

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Preventing Domain Name Spam

by Dorian on June 1, 2010

Domain Name Spam is a spamming technique where the sender only knows the domain name and he doesn’t have any valid email address in the domain. The technique involves sending emails to all the possible combinations or to a nicely crafted dictionary.

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