<match value="Relay-Version:" type="stringignorecase" offset="0"/>
      <match value="#!\ rnews" type="string" offset="0"/>
      <match value="N#!\ rnews" type="string" offset="0"/>
      <match value="Forward\ to" type="string" offset="0"/>
      <match value="Pipe\ to" type="string" offset="0"/>
      <match value="Return-Path:" type="stringignorecase" offset="0"/>

<code>q = x / y</code> and remainder <code>r = x % y</code> satisfy the following
relationships:
</p>

<pre>
x = q*y + r  and  |r| &lt; |y|
</pre>

<p>
with <code>x / y</code> truncated towards zero
(<a href="https://en.wikipedia.org/wiki/Modulo_operation">"truncated division"</a>).
</p>

<pre>
 x     y     x / y     x % y
 5     3       1         2
-5     3      -1        -2