sendmail, 4th Edition

$>

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Rewrite through another rule set

RHS operator

It is often valuable to group rule sets by function and call them as subroutines from a rule. To illustrate , consider the following rule:

 R $+ < @ $+ >           $: $>  set  

Here, the RHS $> set operator tells sendmail to perform additional rewriting using a secondary set of rules called set . The workspace is passed as is to that secondary rule set, and the result of the rewriting by that secondary rule set becomes the new workspace.

The $> operator is described in full in Section 18.7.4.