qmail虚拟域用户只能收信，不能发信问题

springwind

系统：redhat linux 9
问题描述：系统用户可以正常收发邮件，但虚拟域用户不能发信可以收信
软件安装情况：
vpopmail-5.2.1.tar.gz
vqadmin-2.3.2.tar.gz
qmailadmin-1.0.6.tar.gz
maildrop-1.6.2.tar.bz2
clamav-0.67-1.tar.gz
qmail-scanner-1.20.tgz
courier-imap-1.7.1.tar.bz2

maillog上无错误信息显示

iptables已经打开该打开的端口

tcpserver脚本：
#!/bin/sh
QMAILQUEUE=/var/qmail/bin/qmail-scanner-queue.pl
QMAILQUEUE=/var/qmail/bin/qmail-scanner-queue
export QMAILQUEUE

. /usr/share/qmail/run-functions

# If rblsmtpd is installed, process rbltimeout rbldomains, and antirbldomains
if [ -x /usr/bin/rblsmtpd ]; then
        readdefault domains antirbldomains ""
        for domain in $domains; do
                rblopts="$rblopts -a $domain"
        done
        readdefault domains rbldomains ""
        for domain in $domains; do
                rblopts="$rblopts -r $domain"
        done
        readdefault timeout rbltimeout 60
        if [ -n "$rblopts" ]; then
                rbl="/usr/bin/rblsmtpd -t $timeout $rblopts"
        fi
fi

# Start daemons.
hostname="`hostname`"
readdefault concurrency concurrencysmtpd 20
readdefault smtpcheckpasspro smtpcheckpass /bin/checkpassword
readdefault smtpcheckpassprosub smtpcheckpasssub /bin/true
do_ulimits

exec envuidgid qmaild \
tcpserver -DRUvX -c "$concurrency" -l "`head -1 /var/qmail/control/me`" \
        -x /etc/tcpcontrol/smtp.cdb 0 smtp \
        fixcrio $rbl qmail-smtpd \
        "$hostname" "$smtpcheckpasspro" "$smtpcheckpassprosub" 2>;&1


smtp.rules：
:deny
127.:allow,RELAYCLIENT=""
192.168.0.:allow, RELAYCLIENT=""

请赐教！

springwind

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