[exim] Forwarding probs

Hi all

I am running exim4 on debian testing. I have exiscan and clamav in place. My
main exchanger is receiving mails to our domain and sending to this
smarthost which in turn gives it to subdomains. The Spam tagging is at the
main exchanger and the spam tagged mails are as such forwarded to the end
user. In my config, if any user has a .forward in his home directory in the
smart host his spam tagged mails are all retained at the smarthost and only
non tagged mails reach his remote mailbox. My .forward router is

router/600_exim4-config_userforward
===================================
userforward:
  debug_print = "R: userforward for $local_part@$domain"
  driver = redirect
  domains = +local_domains
  check_local_user
  file = $home/.forward
  no_verify
  no_expn
  check_ancestor
  allow_filter
  directory_transport = address_directory
  file_transport = address_file
  pipe_transport = address_pipe
  reply_transport = address_reply
  skip_syntax_errors
  syntax_errors_to = real-$local_part@$domain
  syntax_errors_text = \
    This is an automatically generated message. An error has\n\
    been found in your .forward file. Details of the error are\n\
    reported below. While this error persists, you will receive\n\
    a copy of this message for every message that is addressed\n\
    to you. If your .forward file is a filter file, or if it is\n\
    a non-filter file containing no valid forwarding addresses,\n\
    a copy of each incoming message will be put in your normal\n\
    mailbox. If a non-filter file contains at least one valid\n\
    forwarding address, forwarding to the valid addresses will\n\
    happen, and those will be the only deliveries that occur.

Thanks for any help in advance This is my live server I dont watn to change
anything without any experts insight in it. So I am posting it for your
valuable comments


Thanks & Regards

Kausalya Ramaswamy
Scientific Officer - C
Computer Centre, TIFR,
Mumbai - 400005. INDIA