[exim] mail loop between 2 routers

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Autor: Markus Hardiyanto
Data:  
A: exim-users
Assumpte: [exim] mail loop between 2 routers
i create a perl script named scan.pl like this:

open(OUT, "|/usr/exim/bin/exim -oMr sv-scanned -bS")
|| die "Connection to Exim failed.\n";

open(READ, "$message");
while (<READ>)
{
print OUT "$_";
}
close(READ);
close(OUT);

and setup this router and transport:

svcheck_router:
  no_verify
  check_local_user
  condition = \
  "${if and { {!def:h_X-Spam-Flag:} \
              {!eq {$received_protocol}{sv-scanned}} \
            }\
            {1}{0}\
    }"
  driver = accept
  transport = svcheck


svcheck:
    driver = pipe
    command = /var/exim/scan.pl
    use_bsmtp = true
    home_directory = "/tmp"
    current_directory = "/tmp"
    user = mailnull
    group = mail
    log_output = true
    return_fail_output = true
    return_path_add = false
    message_prefix =
    message_suffix =


because i'm using cpanel based server so there is
already several router set by cpanel.
and there is a router that conflict with my
script/router configuration, causing a mail loop, and
exim will drop the email with error message like "to
many Received: header"

here is the router and transport that looping with my
router/script configuration:
sa_localuser:
driver = accept
check_local_user
headers_add="${perl{gensaheader}{$local_part}}"
condition =
"${perl{checkusersa}{$local_part}{$received_protocol}}"
domains = ! lsearch;/etc/userdomains
transport = local_sa_delivery

local_sa_delivery:
driver = pipe
command = /usr/sbin/sendmail -bS
use_bsmtp = true
transport_filter = "/usr/bin/spamc"
user = $local_part
group = mail
log_output = true
current_directory = "/tmp"
home_directory = "/tmp"
return_fail_output = true
return_path_add = false
message_prefix =
message_suffix =

please help me solve this.

Best Regards,
Markus


        
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