Escaping Characters

[Dan]

I built individual escaped and non escaped body tests for every non letter/number symbol on my keyboard and threw an email with every symbol in it, at them.  This was the result: works with and without / ! " $ % & ' , - : ; < = > @ ] _ ` { } ~ works only with / # ( ) * + . / ? [ \ ^ | The surprise is that {}'s and ()'s are each in one group while []'s are split between left and right.  Does this look correct? Dan