In an attempt to warn against possible "phising" attacks, it compares the link text to the actual link. For example:
The following link will NOT trigger a MailScanner warning:
<a href="http://www.example.com">www.example.com</a>
The following link-tracked link generated by IEM WILL trigger a MailScanner warning:
<a href="http://www.example.com/link.php?C=1&L=1&M=928hfg8032r4nlsdf">www.google.com</a>
The following link-tracked link will NOT trigger a MailScanner warning:
<a href="http://www.example.com/link.php?C=1&L=1&M=928hfg8032r4nlsdf">Search Google</a>
Notice that if you have a website address in your link text, MailScanner will try check whether the actual link (at least the domain portion) is the same as the text.
To avoid this issue, you can either:
- turn off link tracking, or
- stop using a URL as the link text.

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