# File /home/matt/rubymail/mail/header.rb, line 347
    def match(name, regexp)
      massage_match_args(name, regexp) { |name, regexp|
        header = Mail::Header.new
        found = each { |n, v|
          if field_name_format(n) =~ name  &&  v =~ regexp
            header[n] = v
          end
        }
        header
      }
    end