What is the different between /var/qmail/control/qmail-smtpd.rules and /service/smtpd/tcp?

["sato x" <gladiol4@gmail.com>]

Hi guys...I'm back again.

This time I've got problem with simscan integration into qmail-ldap.
Before this, I got qmail-ldap running well with smtp auth that I set in
/var/qmail/control/qmail-smtpd.rules 

127.:allow,RELAYCLIENT="",SMTPAUTH="",AUTHREQUIRED=""
172.168.:allow,RELAYCLIENT="",SMTPAUTH="",AUTHREQUIRED=""

In this way, when the users are sending email, qmail-ldap will ask them their password.

By the way, currently I have this in my /service/smtpd/tcp (I have no complain about this)

127.:allow,RELAYCLIENT=""
:allow

No I'm trying to include simscan, clamav and spamassassin into
qmail-ldap. As
http://www.qmail-ldap.org/wiki/Full_Installation_Guide_-_Antivirus
said, I should add these line into /service/smtpd/tcp file

127.:allow,RELAYCLIENT=""
:allow,RBL="",RCPTCHECK="",SMTPAUTH="AUTHREQUIRED",QMAILQUEUE="/var/qmail/bin/simscan"

I become confused about this because before this I did all the configuration of smtpd in qmail-smtpd.rules. 

I want some explenation from people who understand the recipe of qmail-ldap about :
1. Does qmail-smtpd.rules replaces /service/smtpd/tcp? I mean, if there
is a qmail-smtpd.rules in the control directory then qmail will utilize
it instead of /service/smtpd/tcp. Which one should I choose: tcp or
qmail-smtpd.rules?
2. This time about simscan. I don't have a simscan user, instead I use clamav as the user when compile simscan-1.1 via 
   --enable-user=clamav
   Is this OK?  

I would greatfully thank for all the help before that gave me a lot of understanding about qmail-ldap. Cheers...

Best regards,

sato

Best regards,

sato