#
# various kinds of MX RDATA stored in an input buffer
#
# Valid RDATA for "10 mail.example.com"
#
# RDLENGTH=18 bytes
# 0  1
 00 12
#  2  3
# PREFERENCE: 10
  00 0a
# EXCHANGE: non compressed
# 4  5  6  7  8  9 10  1  2  3  4  5  6  7  8  9 (bytes)
#(2) m  x (7) e  x  a  m  p  l  e (3) c  o  m  .
 02 6d 78 07 65 78 61 6d 70 6c 65 03 63 6f 6d 00