# $1 is expected output file, provided by caller
# $2 is mhmail switches, except for -body
# $3 of -b signifies use -body switch, | signifies provide body on stdin
# $1 is expected output file, provided by caller
# $2 is mhmail switches, except for -body
# $3 of -b signifies use -body switch, | signifies provide body on stdin