Apparently, countmail relies on from, but this is not on my system, so there might be a dependency missing in the package description. ~ $ sh -x /usr/games/countmail + + wc -l from /usr/games/countmail: 1: from: not found + set -- 0 + v=0 + set -- + g=0 + v=0000 + : + g=1 + v=0 + : + break + p=S + set ZERO + echo ZERO! ZERO MAIL MESSAGES! HAHAHAHAHA! ZERO! ZERO MAIL MESSAGES! HAHAHAHAHA!