uip/other/checkmail.c: "-a" flag doesn't work.  Change "getopt" from
  "cfm" to "afm"...

uip/other/resend.c: doesn't close signature FD.  Also, doesn't check
  for "\n" in .signature [it should only read the first line]

lib/mmdf/ml_send.c: doesn't close signature FD "sigfd" - will cause file
  descriptor leak in "deliver" !!

DO NOT ENABLE .forward FILES... they are a security problem!