hobbit email notifications with nullmailer

[William Arlofski <waa-vai (at) revpol.com>]

I have a system (Gentoo) running hobbit. I have installed the 4.20 with 
the all-in-one patch.

The system is using nullmailer as my preferred MTA. It is a very small, 
minimal qmail-like MTA run under daemontools.


/usr/sbin/sendmail is the 'wrapper' for email submissions, but it does 
not accept a subject on the command line (eg: -s "this is the subject") 
the way the sendmail does:

--[snip]--
# sendmail -h
sendmail: option -h requires a value.
usage: sendmail [flags] [recipients] <message
Nullmailer sendmail emulator
  -B          Ignored
  -b          Ignored
  -C          Ignored
  -d          Ignored
  -F          Set the full name of the sender
  -f          Set the envelope sender address
  -h          Ignored
  -i          Ignored
  -L          Ignored
  -m          Ignored
  -N          Ignored
  -n          Ignored
  -O          Ignored
  -o          Ignored
  -p          Ignored
  -q          Ignored
  -R          Ignored
  -r          An alternate and obsolete form of the -f flag
  -t          Read message for recipients
  -U          Ignored
  -V          Ignored
  -v          Ignored
  -X          Ignored

  -h, --help  Display this help and exit
--[snip]--

It requires that the email message being sent to (through?) it contains 
a "Subject:" line in the header.

Without me changing to another MTA, is there a way to tell hobbit that 
this is what I need? Changing would be OK if that was the only way forme 
to get hobbit to send me notifications.

Thanks!

--
Bill Arlofski
Reverse Polarity, LLC