Date Header not being added before milter

I have a really strange situation where the Date is not being added to
the message header until after it goes through a few milters I have
setup. This is a problem because one of the milters needs the Date
from the message header.

The Date does however get added when sending from localhost but not
when sending from in_web (the second DAEMON_OPTIONS)

I have the following in my sendmail.mc file.

MODIFY_MAILER_FLAGS(`SMTP', `+DFd')dnl
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1,Name=MTA')dnl
DAEMON_OPTIONS(`Port=smtp,Addr=in_web,Name=MTA')dnl
INPUT_MAIL_FILTER(`[left out on purpose]')dnl

any thoughts would be greatly appreciated.

thank you in advance,

av