[Mimedefang] whitelisting in mimedefang-filter

[tonj]

> If this is a snippet of your filter, your are missing the function 
> arguments as explained in man mimedefang-filter sec. "FILTERING BY 
> RECIPIENT".

I went through the md (pdf) manual both before my original query and again 
now but I could find no reference to 'FILTERING BY RECIPIENT". Maybe I'm 
looking at a different manual to you. What page of the manual did you see 
this on?