How to use procmail to forward mail under conditions

Hi
I would like to perform the following algorithm:

if (To == "email1(_at_)host(_dot_)com" )
then {
 add "Misc" field and write orginal "To" to it;/*optional*/
 write "email2(_at_)host(_dot_)com" in "To" ;
 forward message to "email2(_at_)host(_dot_)com" (without saving) ;
}

The operating system is Solaris 2.6




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