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#! /bin/sh
HOSTNAME=$(/bin/hostname)
if [ -z "$HOSTNAME" -o "$HOSTNAME" = "(none)" -o ! -z "`echo $HOSTNAME | sed -n '/^[0-9]*\.[0-9].*/p'`" ]; then
# If hostname is invalid, and myhostname not existed in main.cf
/usr/sbin/postconf -h "myhostname" 2>/dev/null
if [ $? -ne 0 ]; then
# Set "localhost" to main.cf
/usr/sbin/postconf -e "myhostname=localhost"
fi
fi
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