=== CompareNumericHeaderValue

Matches mails containing a header with a numeric value whose comparison with the specified value is true.

If the header is missing in the message, there will be *no match*

Configuration string: The headerName, a comparison operator and the numeric headerValue
to compare with, *space or tab delimited*.

The comparison operators are: *<, <=, ==, >=, >*;
another set of operators is: *LT, LE, EQ, GE, GT*.

Also the following operators are accepted: *=<, =, =>*.

Example:

....
<mailet match="CompareNumericHeaderValue=X-MessageIsSpamProbability > 0.9" class="ToProcessor">
    <processor> spam </processor>
</mailet>
....