But if i do not rename it , the mail cannot send it out, below is my config for the qmail-remote that which cannot send out, is there have problems?
[root@smtp bin]# cat qmail-remote_bak
#!/bin/bash
# version 6
PATH=/bin:/usr/bin:/usr/local/bin
shopt -q -s extglob
host="$1"
sender="$2"
# First, figure out who the sending domain is:
[[ -z "$sender" && "$DEFAULTDOMAIN" ]] && sender="@$DEFAULTDOMAIN"
[ -z "$sender" ] && sender=@`hostname -f`
DOMAIN="${sender##*@}"
# Sanity-check the sender
if [[ $DOMAIN == !(+([a-zA-Z0-9\!\#$%*/?|^{}\`~&\'+=_.-])) ]] ; then
# ' fix vim quote logic
echo "DSender address contains illegal characters."
exit 0
fi
# Now, fill in the basic variables (if they don't exist already)
[ "$DKREMOTE" ] || DKREMOTE="/var/qmail/bin/qmail-remote.orig"
[ "$DKSIGN" ] || DKSIGN="/var/qmail/control/domainkeys/%/private"
# Now try and find the right subdomain, per RFC 4871
# (you can eliminate this loop if you don't want parent domains signing child
# domain's email)
if [ "$DOMAIN" ] ; then
while [ ! -r "${DKSIGN//\%/$DOMAIN}" ] ; do
# try parent domains, per RFC 4871, section 3.8
DOMAIN=${DOMAIN#*.}
DPARTS=( ${DOMAIN//./ } )
[ ${#DPARTS
- } -eq 1 ] && DOMAIN="${sender##*@}" && break
done
fi
DKSIGN="${DKSIGN//\%/$DOMAIN}"
# Now that we have the correct DKSIGN value (i.e. the filename of the key to
# use to sign email), check to see if this file exists
if [ -r "$DKSIGN" ] ; then
# The key does exist, so now use it to generate signatures!
tmp=`mktemp -t dk.sign.XXXXXXXXXXXXXXXXXXX`
tmp2=`mktemp -t dk2.sign.XXXXXXXXXXXXXXXXXXX`
cat - >"$tmp"
# compute the DomainKey signature
error=`(dktest -s "$DKSIGN" -c nofws -h <"$tmp" | \
sed 's/; d=.*;/; d='"$DOMAIN"';/' > "$tmp2") 2>&1`
if [ "$error" ] ; then
# Communicate the problem to qmail (that's why the 'Z')
echo "ZDomainKey error: $error"
rm "$tmp" "$tmp2"
exit -1
fi
# compute the DKIM signature
error=`(dkimsign.pl --type=dkim --selector=private --domain="$DOMAIN" \
--key="$DKSIGN" --method=relaxed <"$tmp" | \
tr -d '\r' >> "$tmp2") 2>&1`
if [ "$error" ] ; then
# Communicate the problem to qmail (that's why the 'Z')
echo "ZDKIM error: $error"
rm "$tmp" "$tmp2"
exit -2
fi
# feed the signatures and the original message to the real qmail-remote
# I'm combining to a third temp file to allow the file to be "rewound",
# since some folks like that ability
tmp3=`mktemp -t dk3.sign.XXXXXXXXXXXXXXXXXXX`
cat "$tmp2" "$tmp" > "$tmp3"
rm "$tmp" "$tmp2"
"$DKREMOTE" "$@" < "$tmp3"
retval=$?
rm "$tmp3"
exit $retval
else
# No signature added
exec "$DKREMOTE" "$@"
fi
