You simply would replace all the Mailer Mod links in your html.pl file from $rec{'UserID'} to $rec{'RandomID'} and for the get_record codes, use $rec{'RandomID'}.
I've been through the mailer section of the html file and can't find those variables Eliot, just &db_key and $in{$db_key} which in my case is &db_key='userid'
