[Mimedefang] MIMEDefang problem

[MIMEDefang]

Hi to everybody,

I'm testing MIMEDefang to configure a filter to archiving sent emails for
backup. These are the software packages version´s used:

-Linux 2.4.2-2 (Red Hat release 7.1)
-Perl 5.6.0
-Digest-SHA1-2.00
-HTML-Parser-3.27
-HTML-Tagset-3.03
-IO-stringy-1.212
-libnet-1.13
-MIME-tools-5.411a-RP-Patched-02
-Unix-Syslog-0.100
-MailTools-1.1401
-MIME-Base64-2.11
-Time-HiRes-1.42
-Mail-Audit-2.1
-Sendmail 8.12.7 (just for testing, I'm not crazy! :D) compiled to support
plain AUTH

Notes:
-MIMEDefang is working using defang user, /var/spool/MIMEDefang and
/var/log/mimedefang are owned by it.
-I'm using default mimedefang-filter script. I don't get complains testing
it (mimedefang.pl -test).
-I already fixed some errors I saw on /var/spool/MIMEDefang/mdefang-date
hostxx-x/STDER (I had to specify the perl path on mimedefang-filter).
-Queue time for sendmail: 5 minutes.
-sendmail.mc line about milter: INPUT_MAIL_FILTER(`mimedefang',
`S=unix:/var/spool/MIMEDefang/mimedefang.sock, T=S:5m;R:5m'). It keeps a
good timeout and I don't use "F=T" flag because I'm not interested right now
on antivirus, I don't really care if filter fails, is more important
avability.

On mimedefang-multiplexor mode (with -l for debugging) I get these errors:

date host sendmail[6193]: h2CHtG7p006193: from=<mymachine at mydomain.com>,
size=1260, class=0, nrcpts=1,
msgid=<074501c2e8c0$b933a690$1301a8c0 at mymachine>, proto=SMTP, daemon=MTA,
relay=mymachine [10.0.0.1]
date host mimedefang-multiplexor: Starting slave 0 (pid 6195) (1 running):
About to perform scan
date host mimedefang-multiplexor: stats 1047491716.542 StartSlave slave=0
nslaves=1 nbusy=0 reason="About to perform scan"
date host mimedefang-multiplexor: stats 1047491716.543 StartFilter slave=0
nslaves=1 nbusy=1
date host mimedefang-multiplexor: handleSlaveReceivedCommand(0): Timeout or
error: Flag =1
date host mimedefang-multiplexor: Killing slave 0 (pid 6195): Error talking
to slave process
date host mimedefang-multiplexor: stats 1047491716.543 KillSlave slave=0
nslaves=1 nbusy=1 reason="Error talking to slave process"
date host mimedefang-multiplexor: Reap: Idle slave 0 (pid 6195) exited
normally with status 0
date host mimedefang-multiplexor: Slave 0 resource usage: req=0, scans=0,
user=0.010, sys=0.000, nswap=0, majflt=272, minflt=49, maxrss=0, bi=0, bo=0
date host mimedefang-multiplexor: stats 1047491716.543 ReapSlave slave=0
nslaves=0 nbusy=0
date host mimedefang[6194]: Error from multiplexor: error: Error talking to
slave process
date host mimedefang[6194]: h2CHtG7p006193: Filter failed.  Message is in
/var/spool/MIMEDefang/mdefang-3E6F7484-0
date host sendmail[6193]: h2CHtG7p006193: Milter: data, reject=451 4.7.1
Please try again later
date host sendmail[6193]: h2CHtG7p006193:
to=<mydestination at othermydomain.com>, delay=00:00:00, pri=30598, stat=Please
try again later

On mimedefang stand alone mode I get these other errors,

date host sendmail[6808]: h2CIIjr8006808: from=<mymachine at mydomain.com>,
size=1260, class=0, nrcpts=1,
msgid=<074f01c2e8c4$00d07250$1301a8c0 at mymachine>, proto=SMTP, daemon=MTA,
relay=mymachine [10.0.0.1]
date host mimedefang[6809]: h2CIIjr8006808: Filter did not create RESULTS
file
date host mimedefang[6809]: h2CIIjr8006808: Filter failed.  Message is in
/var/spool/MIMEDefang/mdefang-3E6F7A05-0
date host sendmail[6808]: h2CIIjr8006808: Milter: data, reject=451 4.7.1
Please try againlater
date host sendmail[6808]: h2CIIjr8006808:
to=<mydestination at othermydomain.com>, delay=00:00:00, pri=30598, stat=Please
try again later

I really need to work with MIMEDefang and belive me, I tried unsuscesfully
to determite what's going wrong, I've been searching with Google any of
those strings with failures and I can't progress from here.

Thanks for your attention

Regards

Diego Munoz