###==========================================###
##      Ubuntu 18.04 Mailserver installer     ## 
###==========================================###

##----------##
#    Menu    #
##----------##
#echo "Menu"

#echo "Ubuntu 18.04 Mailserver installatie script."
#echo "Domein zonder www en mail.:"
#read domain
#echo "Algemeen wachtwoord:"
#read password
#echo "Administrator email:"
#read email

##-----------------##
#    Static-Vars    #
##-----------------##
echo "Static-Vars"
domain=ictdownwerk.com
password=JW9t9ipdgLrWvMqHq7hX
email=admin@ictdagbesteding.nl
phpver=7.3
domonly=${domain}
domain=mail.${domain}
branch=omega
dhparam=1024

##----------------##
#    Pre-Config    #
##----------------##
hostnamectl set-hostname $domain
apt update
add-apt-repository universe -y
add-apt-repository ppa:ondrej/php -y
apt install software-properties-common -y
apt upgrade -y
apt autoremove -y
timedatectl set-timezone Europe/Amsterdam
mkdir -p /etc/nginx
mkdir -p /var/www/"$domain"/html
chmod -R 755 /var/www

##-------------##
#    Debloat    #
##-------------##
apt autoremove --purge lxcfs lxd lxd-client geoip-database snapd -y

##-----------------------##
#    Html Folder Perms    #
##-----------------------##
chown -R www-data:www-data /var/www/"$domain"/html

##-----------##
#    NGINX    #
##-----------##
apt install -y nginx
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Web/raw/branch/master/config/nginx/nginx-default.conf -O /etc/nginx/nginx.conf

cat <<EOF > /etc/nginx/sites-available/"$domain"
#fastcgi_cache_path /etc/nginx/cache levels=1:2 keys_zone=MYAPP:100m max_size=10g inactive=1440m;

server {
    listen       80;
    server_name   www.$domain;
    return       301 http://$domain\$request_uri;
}

server {
    listen 80;
    listen [::]:80;
    root /var/www/$domain/html;
    index index.php index.html index.htm index.nginx-debian.html;
    server_name $domain;
    #return 301 \$scheme:/\$domain\$request_uri; Redirect to non-www
    #return 301 https://domein.nl$request_uri; Redirect to other domain

    #add_header X-Cache "\$upstream_cache_status";

    #netdata here
        
    gzip on;
    gzip_proxied any;
    gzip_types text/plain text/css text/xml text/javascript application/javascript application/x-javascript image/svg image/svg+xml application/xml image/x-icon;
    gzip_comp_level 2;
    gzip_disable "msie6";
    gzip_buffers 16 8k;

#    location /rspamd {
#    proxy_pass http://127.0.0.1:11334/;
#    proxy_set_header Host \$host;
#    proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
#}

        location / {
            #try_files \$uri \$uri/ =404;
            try_files \$uri \$uri/ /index.php\$is_args\$args;
            #try_files \$uri \$uri/ \$uri.html \$uri.php\$is_args\$query_string;
        }

        location = /favicon.ico { log_not_found off; access_log off; }
        location = /robots.txt { log_not_found off; access_log off; allow all; }
        location ~* \.(css|gif|ico|jpeg|jpg|js|png|svg|webp|eot|otf|woff|woff2|ttf|ogg)\$ {
            expires max;
            log_not_found off;
            add_header Cache-Control "public, no-transform";
        }

        location ~ \.php\$ {
            include snippets/fastcgi-php.conf;
            fastcgi_pass unix:/var/run/php/php${phpver}-fpm.sock;
            #fastcgi_cache MYAPP;
            #fastcgi_cache_valid 200 302 301 1m;
            #fastcgi_cache_valid 404 1m;
            #fastcgi_cache_bypass \$no_cache;
            #fastcgi_no_cache \$no_cache;
            #fastcgi_cache_revalidate on;
            #fastcgi_cache_background_update on;
            #fastcgi_cache_lock on;
            #fastcgi_cache_use_stale updating;
            #fastcgi_buffer_size 128k;
            #fastcgi_buffers 256 16k;
            #fastcgi_busy_buffers_size 256k;
            #fastcgi_temp_file_write_size 256k;
        }

        location ~ /\.ht {
            deny all;
        }

        location /phpmyadmin {
            index index.php;
        }

        #Cache everything by default
        set \$no_cache 0;

        #Don't cache POST requests
        if (\$request_method = POST) {
            set \$no_cache 1;
        }

        #Don't cache if the URL contains a query string
        if (\$query_string != "") {
            set \$no_cache 1;
        }

        #Don't cache the following URLs
        if (\$request_uri ~* "/(administrator/|login.php)") {
            set \$no_cache 1;
        }

        #Don't cache if there is a cookie called PHPSESSID
        if (\$http_cookie = "PHPSESSID") {
            set \$no_cache 1;
        }
    }
EOF

ln -s /etc/nginx/sites-available/"$domain" /etc/nginx/sites-enabled/

##-------------------------------##
#    NGINX Single core bug fix    #
##-------------------------------##
mkdir /etc/systemd/system/nginx.service.d
printf "[Service]\nExecStartPost=/bin/sleep 0.1\n" > /etc/systemd/system/nginx.service.d/override.conf
systemctl daemon-reload
systemctl restart nginx

##-----------------------##
#    MySQL Installation   #
##-----------------------##
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-MySQL/raw/branch/master/mysql-8.0.sh -O /tmp/mysql-8.0.sh
source /tmp/mysql-8.0.sh

##------------------------------##
#    MySQL_Secure_Installation   #
##------------------------------##
mysql -u root -p"$password" -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1')"
mysql -u root -p"$password" -e "DELETE FROM mysql.user WHERE User=''"
mysql -u root -p"$password" -e "DELETE FROM mysql.db WHERE Db='test' OR Db='test\_%'"
mysql -u root -p"$password" -e "SELECT user,authentication_string,plugin,host FROM mysql.user;"
mysql -u root -p"$password" -e "ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '"$password"';"
mysql -u root -p"$password" -e "FLUSH PRIVILEGES;"

##-----------------------------##
#    MySQL Database Creation    #
##-----------------------------##
mysql -u root -p"$password" -e "CREATE DATABASE postfixadmin;"
mysql -u root -p"$password" -e "CREATE USER '"postfixadmin"'@'localhost' IDENTIFIED BY '"$password"';"
mysql -u root -p"$password" -e "GRANT ALL ON "postfixadmin".* TO "postfixadmin"@'localhost';"
mysql -u root -p"$password" -e "FLUSH PRIVILEGES;"

##------------------##
#    PostfixADMIN    #
##------------------##
apt install php${phpver} php${phpver}-zip php${phpver}-fpm php${phpver}-cli php${phpver}-json php${phpver}-mysql php${phpver}-opcache php${phpver}-mbstring php${phpver}-readline -y
apt install libc-client2007e mlock php${phpver}-common php${phpver}-imap -y
mkdir -p /var/www/"$domain"/html/postfixadmin/templates_c
wget -q -t7 https://git.ictmaatwerk.com/downloads/pfa/postfixadmin-3.1.tar.gz -O /tmp/postfixadmin.tar.gz
tar -xf /tmp/postfixadmin.tar.gz -C /var/www/"$domain"/html/postfixadmin --strip-components=1
chmod 755 -R /var/www/"$domain"/html/postfixadmin/templates_c
chown -R www-data: /var/www/"$domain"/html/
wget https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfixadmin/config.local.php -O /var/www/$domain/html/postfixadmin/config.local.php
sed -i -e 's/PASSword/'$password'/' -e 's/dOmaINnamE/'$domonly'/' /var/www/"$domain"/html/postfixadmin/config.local.php
sudo -u www-data php /var/www/"$domain"/html/postfixadmin/upgrade.php
bash /var/www/"$domain"/html/postfixadmin/scripts/postfixadmin-cli admin add superadmin@"$domonly" --superadmin 1 --active 1 --password "$password" --password2 "$password"
groupadd -g 5000 vmail
useradd -u 5000 -g vmail -s /usr/sbin/nologin -d /var/mail/vmail -m vmail

##--------------------##
#    Certbot (Auto)    #
##--------------------##
add-apt-repository ppa:certbot/certbot -y
apt install -y python-certbot-nginx
certbot --nginx -n -d "$domain" -m "$email" --hsts --redirect --no-eff-email --agree-tos
echo "certbot --nginx -n -d $domain -m $email --hsts --redirect --no-eff-email --agree-tos" > ~/certbotactivate.sh
sed -i 's/ssl ipv6only/ssl http2 ipv6only/g' /etc/nginx/sites-available/"$domain"
sed -i 's/listen 443 ssl/listen 443 ssl http2/g' /etc/nginx/sites-available/"$domain"
sed -i 's#include /etc/letsencrypt/options-ssl-nginx.conf;#ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;#g' /etc/nginx/sites-available/"$domain"
openssl dhparam -out /etc/ssl/certs/dhparam.pem "$dhparam"
chmod 777 -R /etc/ssl/certs/dhparam.pem

##----------------------##
#    Certbot (Manual)    #
##----------------------##
#mkdir -p /etc/letsencrypt/live/$domain/
#sed -i 's/ssl ipv6only/ssl http2 ipv6only/g' /etc/nginx/sites-available/"$domain"
#sed -i 's/listen 443 ssl/listen 443 ssl http2/g' /etc/nginx/sites-available/"$domain"
#sed -i 's#include /etc/letsencrypt/options-ssl-nginx.conf;#ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;#g' /etc/nginx/sites-available/"$domain"
#wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/lets-encrypt/cert.pem -O /etc/letsencrypt/live/$domain/
#wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/lets-encrypt/chain.pem -O /etc/letsencrypt/live/$domain/
#wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/lets-encrypt/fullchain.pem -O /etc/letsencrypt/live/$domain/
#wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/lets-encrypt/privkey.pem -O /etc/letsencrypt/live/$domain/
#wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/nginx/site-enabled -O /etc/nginx/sites-available/mail.ictdownwerk.com
#openssl dhparam -out /etc/ssl/certs/dhparam.pem "$dhparam"
#chmod 777 -R /etc/ssl/certs/dhparam.pem
#chmod 777 -R /etc/letsencrypt/live/$domain/cert.pem chain.pem fullchain.pem privkey.pem
#chmod 644 -R /etc/nginx/sites-available/mail.ictdownwerk.com

##-----------------------##
#    Postfix Installer    #
##-----------------------##
debconf-set-selections <<< "postfix postfix/mailname string $(hostname -f)"
debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'"
apt install postfix postfix-mysql -y

##---------------------------##
#    Postfix Configuration    #
##---------------------------##
mkdir -p /etc/postfix/sql
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_alias_domain_catchall_maps.cf -O /etc/postfix/sql/mysql_virtual_alias_domain_catchall_maps.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_alias_domain_mailbox_maps.cf -O /etc/postfix/sql/mysql_virtual_alias_domain_mailbox_maps.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_alias_domain_maps.cf -O /etc/postfix/sql/mysql_virtual_alias_domain_maps.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_alias_maps.cf -O /etc/postfix/sql/mysql_virtual_alias_maps.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_domains_maps.cf -O /etc/postfix/sql/mysql_virtual_domains_maps.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/postfix/mysql_virtual_mailbox_maps.cf -O /etc/postfix/sql/mysql_virtual_mailbox_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_domains_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_alias_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_alias_domain_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_alias_domain_catchall_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_mailbox_maps.cf
sed -i 's/PASSword/'$password'/g' /etc/postfix/sql/mysql_virtual_alias_domain_mailbox_maps.cf
echo "#MySQL Database" >> /etc/postfix/main.cf
postconf -e "virtual_mailbox_domains = mysql:/etc/postfix/sql/mysql_virtual_domains_maps.cf"
postconf -e "virtual_alias_maps = mysql:/etc/postfix/sql/mysql_virtual_alias_maps.cf, mysql:/etc/postfix/sql/mysql_virtual_alias_domain_maps.cf, mysql:/etc/postfix/sql/mysql_virtual_alias_domain_catchall_maps.cf"
postconf -e "virtual_mailbox_maps = mysql:/etc/postfix/sql/mysql_virtual_mailbox_maps.cf, mysql:/etc/postfix/sql/mysql_virtual_alias_domain_mailbox_maps.cf"
echo "#Use Dovecot's LMTP service as the default mail delivery" >> /etc/postfix/main.cf
postconf -e "virtual_transport = lmtp:unix:private/dovecot-lmtp"
echo "#TLS and SSL certificate" >> /etc/postfix/main.cf
postconf -e "smtp_tls_security_level = may"
postconf -e "smtpd_tls_security_level = may"
postconf -e "smtp_tls_note_starttls_offer = yes"
postconf -e "smtpd_tls_loglevel = 1" 
postconf -e "smtpd_tls_received_header = yes"
postconf -e "smtpd_tls_cert_file = /etc/letsencrypt/live/"$domain"/fullchain.pem"
postconf -e "smtpd_tls_key_file = /etc/letsencrypt/live/"$domain"/privkey.pem"
echo "#SMTP Settings, hand off authentication to Dovecot" >> /etc/postfix/main.cf
postconf -e "smtpd_sasl_type = dovecot"
postconf -e "smtpd_sasl_path = private/auth"
postconf -e "smtpd_sasl_local_domain ="
postconf -e "smtpd_sasl_security_options = noanonymous"
postconf -e "broken_sasl_auth_clients = yes"
postconf -e "smtpd_sasl_auth_enable = yes"
postconf -e "smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination"
sed -i 's/mynetworks = /#mynetworks = /g' /etc/postfix/main.cf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/$branch/config/postfix/master.cf -O /etc/postfix/master.cf

##-----------------------##
#    Dovecot Installer    #
##-----------------------##
wget -O- https://repo.dovecot.org/DOVECOT-REPO-GPG | sudo apt-key add -
echo "deb https://repo.dovecot.org/ce-2.3-latest/ubuntu/$(lsb_release -cs) $(lsb_release -cs) main" | sudo tee -a /etc/apt/sources.list.d/dovecot.list
apt update
apt install dovecot-imapd dovecot-lmtpd dovecot-pop3d dovecot-mysql -y

##---------------------------##
#    Dovecot Configuration    #
##---------------------------##
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/15-mailboxes.conf -O /etc/dovecot/conf.d/15-mailboxes.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/10-mail.conf -O /etc/dovecot/conf.d/10-mail.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/10-auth.conf -O /etc/dovecot/conf.d/10-auth.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/10-master.conf -O /etc/dovecot/conf.d/10-master.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/10-ssl.conf -O /etc/dovecot/conf.d/10-ssl.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/20-lmtp.conf -O /etc/dovecot/conf.d/20-lmtp.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/20-imap.conf -O /etc/dovecot/conf.d/20-imap.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/dovecot-dict-sql.conf.ext -O /etc/dovecot/dovecot-dict-sql.conf.ext
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/dovecot-sql.conf.ext -O /etc/dovecot/dovecot-sql.conf.ext
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/quota-warning.sh -O /usr/local/bin/quota-warning.sh
sed -i 's/PASSword/'$password'/g' /etc/dovecot/dovecot-sql.conf.ext
sed -i 's/PASSword/'$password'/g' /etc/dovecot/dovecot-dict-sql.conf.ext
sed -i -e 's/DOMAINname/'$domain'/' -e 's/#ssl_cert  = /ssl_cert  = /' -e 's/#ssl_key  = /ssl_key  = /' -e 's/#ssl_dh  = /ssl_dh  = /' /etc/dovecot/conf.d/10-ssl.conf
chmod +x /usr/local/bin/quota-warning.sh

##--------------------------------------##
#    Dovecot move Spam to Spam Folder    #
##--------------------------------------##
apt install dovecot-sieve dovecot-managesieved -y
mkdir -p /etc/dovecot/sieve/
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/$branch/config/dovecot/15-lda.conf -O /etc/dovecot/conf.d/15-lda.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/dovecot/90-sieve.conf -O /etc/dovecot/conf.d/90-sieve.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/sieve/default.sieve -O /etc/dovecot/sieve/default.sieve
chown vmail:vmail /etc/dovecot/sieve/ -R
chgrp dovecot /etc/dovecot/conf.d/90-sieve.conf
sievec /etc/dovecot/sieve/default.sieve
chgrp dovecot /etc/dovecot/sieve/default.svbin

##------------------##
#    Spamassassin    #
##------------------##
apt install spamassassin razor pyzor -y
sed -i -e 's/# report_safe 1/report_safe 0/' -e 's/# required_score 5.0/required_score 5.0/' -e 's/endif # Mail::SpamAssassin::Plugin::Shortcircuit//' /etc/spamassassin/local.cf
echo "" >> /etc/spamassassin/local.cf
echo "skip_rbl_checks 0" >> /etc/spamassassin/local.cf
echo "" >> /etc/spamassassin/local.cf
echo "#pyzor" >> /etc/spamassassin/local.cf
echo "use_pyzor 1" >> /etc/spamassassin/local.cf
echo "pyzor_path /usr/bin/pyzor" >> /etc/spamassassin/local.cf
echo "pyzor_add_header 1" >> /etc/spamassassin/local.cf
echo "" >> /etc/spamassassin/local.cf
echo "#razor" >> /etc/spamassassin/local.cf
echo "use_razor2 1" >> /etc/spamassassin/local.cf
echo "razor_config /etc/razor/razor-agent.conf" >> /etc/spamassassin/local.cf
echo "" >> /etc/spamassassin/local.cf
echo "#bayes" >> /etc/spamassassin/local.cf
echo "use_bayes 1" >> /etc/spamassassin/local.cf
echo "use_bayes_rules 1" >> /etc/spamassassin/local.cf
echo "bayes_auto_learn 1" >> /etc/spamassassin/local.cf
echo "" >> /etc/spamassassin/local.cf
echo "endif # Mail::SpamAssassin::Plugin::Shortcircuit" >> /etc/spamassassin/local.cf

##------------##
#    ClamAV    #
##------------##
apt install clamav clamav-daemon clamsmtp libclamunrar7 clamdscan -y
chown -R clamav:clamav /var/log/clamav
chown -R clamav:clamav /var/lib/clamav

##------------##
#    Amavis    #
##------------##
apt install amavisd-new -y
apt install zip lrzip liblz4-tool lhasa arj unzip bzip2 nomarch cpio lzop cabextract arc apt-listchanges libauthen-sasl-perl libdbd-mysql-perl libdbi-perl libmail-dkim-perl ripole p7zip p7zip-full p7zip-rar rpm unrar unrar-free altermime libsnmp-perl libnet-ldap-perl libnet-ph-perl libnet-snpp-perl libnet-telnet-perl -y
sed -i -e 's/@bypass/'@bypass'/' -e 's/   /    /' /etc/amavis/conf.d/15-content_filter_mode
adduser clamav amavis
sed -i 's/clamd.conf/'clamd.conf'/g' /etc/clamav/freshclam.conf
echo "" >> /etc/postfix/main.cf
echo "#Pipe incoming mail trough Amavis" >> /etc/postfix/main.cf
postconf -e 'content_filter = amavis:[127.0.0.1]:10024'
postconf -e 'receive_override_options = no_address_mappings'
echo "#Pipe incoming mail trough Amavis" >> /etc/postfix/master.cf
echo "amavis unix - - - - 2 smtp" >> /etc/postfix/master.cf
echo "  -o smtp_data_done_timeout=1200" >> /etc/postfix/master.cf
echo "  -o smtp_send_xforward_command=yes" >> /etc/postfix/master.cf
echo "127.0.0.1:10025 inet n - - - - smtpd" >> /etc/postfix/master.cf
echo "  -o content_filter=" >> /etc/postfix/master.cf
echo "  -o local_recipient_maps=" >> /etc/postfix/master.cf
echo "  -o relay_recipient_maps=" >> /etc/postfix/master.cf
echo "  -o smtpd_restriction_classes=" >> /etc/postfix/master.cf
echo "  -o smtpd_client_restrictions=" >> /etc/postfix/master.cf
echo "  -o smtpd_helo_restrictions=" >> /etc/postfix/master.cf
echo "  -o smtpd_sender_restrictions=" >> /etc/postfix/master.cf
echo "  -o smtpd_recipient_restrictions=permit_mynetworks,reject" >> /etc/postfix/master.cf
echo "  -o mynetworks=127.0.0.0/8" >> /etc/postfix/master.cf
echo "  -o strict_rfc821_envelopes=yes" >> /etc/postfix/master.cf
echo "  -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks" >> /etc/postfix/master.cf
echo "  -o smtpd_bind_address=127.0.0.1" >> /etc/postfix/master.cf

##--------------##
#    Rainloop    #
##--------------##
apt install unzip -y
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/rainloop.sh -O /tmp/rainloop.sh
source /tmp/rainloop.sh
ln -s /opt/rainloop /var/www/"$domain"/html/

##--------------##
#    Fail2Ban    #
##--------------##
apt install fail2ban -y
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/fail2ban/dovecot-pop3imap.conf -O /etc/fail2ban/filter.d/dovecot-pop3imap.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/fail2ban/postfix-sasl.conf -O /etc/fail2ban/filter.d/postfix-sasl.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/fail2ban/rainloop.conf -O /etc/fail2ban/filter.d/rainloop.conf
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Ubuntu-Mail/raw/branch/"$branch"/config/fail2ban/jail.local -O /etc/fail2ban/jail.local
sed -i 's/root@localhost/'$email'/g' /etc/fail2ban/jail.conf
systemctl restart fail2ban

##---------------------------------##
#    Unattended Security Updates    #
##---------------------------------##
wget -q -t7 https://git.ictmaatwerk.com/VPS-scripts/Unattended-Security-Updates/raw/branch/master/installer.sh -O /tmp/unattended.sh
source /tmp/unattended.sh

##-----------------------##
#    Enabling Services    #
##-----------------------##
systemctl enable nginx mysql postfix postfix@- dovecot fail2ban clamav-daemon clamav-freshclam clamsmtp spamassassin amavisd-new amavisd-snmp-subagent amavis-mc amavis amavis-snmp-subagent

##-----------------------##
#    Starting Services    #
##-----------------------##
systemctl restart nginx mysql postfix postfix@- dovecot fail2ban clamav-daemon clamav-freshclam clamsmtp spamassassin amavisd-new amavisd-snmp-subagent amavis-mc amavis amavis-snmp-subagent

##------------------##
#    Final Update    #
##------------------##
apt update
apt upgrade -y