Dovecot ACL allow anyone

#!/bin/bash
# SPAMASSASIN+AMAVIS+POSTFIXADMIN BAD SPAM TRAINING SCRIPT 
N=0
log="/vmail/sa-learn.log"
spam_train_folder="/vmail/sa-spam/"
spam_train_folder_used="/vmail/sa-spam-old/"
spam_user_folder=".Junk/cur"
dbuser="postfix"
dbpass="123qwerty"
db="postfix"
domain="example.com"
query="SELECT local_part FROM mailbox WHERE domain = '"$domain"';"

echo ""`date`": Spam copy and training script started" >> $log
#Create train folder if not exists
mkdir -p $spam_train_folder
#Create train folder for processed mail
mkdir -p $spam_train_folder_used

NUM="`ls $spam_train_folder|wc -l`"
mv $spam_train_folder* $spam_train_folder_used
echo "Moved "$NUM" files from spam train folder to spam store" >> $log

#Read mysql user-list to array
read -ra users_list <<< $(mysql -u$dbuser -p$dbpass $db -e "$query";)
echo "`date`: Moving content of spam foldes" >> $log
for i in "${users_list[@]}"; do
#Used to remove row name from array (start from 2nd record)
        if [ $N -ge 1 ]
        then
                NUM=0
                #Moving all spam mails to training folder
                NUM="`ls /vmail/"$domain"/"$i"/Maildir/.Junk/cur/|wc -l`"
                if [ $NUM -ge 1 ]
                        then
                cp -a /vmail/$domain/$i/Maildir/.Junk/cur/* $spam_train_folder >> $log
                echo "Moved "$NUM" files from user: "$i"" >> $log
                        fi
        else
        ((N++))
        fi
done

#Assign correct user to folder and all files
chown -R amavis:amavis $spam_train_folder
echo "`date`: Checking --dump magic before train:" >> $log
su - amavis -c "sa-learn --dump magic" >> $log
echo "Training"
su - amavis -c "sa-learn --no-sync --spam "$spam_train_folder"" >> $log
echo "`date`: Checking --dump magic after train:" >> $log
su - amavis -c "sa-learn --dump magic" >> $log
service amavis restart >> $log
exit 0