mailcow/data/Dockerfiles/postfix/postfix.sh

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#!/bin/bash
trap "postfix stop" EXIT
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[[ ! -d /opt/postfix/conf/sql/ ]] && mkdir -p /opt/postfix/conf/sql/
# Wait for MySQL to warm-up
while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
echo "Waiting for database to come up..."
sleep 2
done
until dig +short mailcow.email @unbound > /dev/null; do
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echo "Waiting for DNS..."
sleep 1
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done
cat <<EOF > /etc/aliases
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# Autogenerated by mailcow
null: /dev/null
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watchdog: /dev/null
ham: "|/usr/local/bin/rspamd-pipe-ham"
spam: "|/usr/local/bin/rspamd-pipe-spam"
EOF
newaliases;
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# create sni configuration
echo -n "" > /opt/postfix/conf/sni.map;
for cert_dir in /etc/ssl/mail/*/ ; do
if [[ ! -f ${cert_dir}domains ]] || [[ ! -f ${cert_dir}cert.pem ]] || [[ ! -f ${cert_dir}key.pem ]]; then
continue;
fi
IFS=" " read -r -a domains <<< "$(cat "${cert_dir}domains")"
for domain in "${domains[@]}"; do
echo -n "${domain} ${cert_dir}key.pem ${cert_dir}cert.pem" >> /opt/postfix/conf/sni.map;
echo "" >> /opt/postfix/conf/sni.map;
done
done
postmap -F hash:/opt/postfix/conf/sni.map;
cat <<EOF > /opt/postfix/conf/sql/mysql_relay_ne.cf
# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT IF(EXISTS(SELECT address, domain FROM alias
WHERE address = '%s'
AND domain IN (
SELECT domain FROM domain
WHERE backupmx = '1'
AND relay_all_recipients = '1'
AND relay_unknown_only = '1')
), 'lmtp:inet:dovecot:24', NULL) AS 'transport'
EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_relay_recipient_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT DISTINCT
CASE WHEN '%d' IN (
SELECT domain FROM domain
WHERE relay_all_recipients=1
AND domain='%d'
AND backupmx=1
)
THEN '%s' ELSE (
SELECT goto FROM alias WHERE address='%s' AND active='1'
)
END AS result;
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_tls_policy_override_maps.cf
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# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT CONCAT(policy, ' ', parameters) AS tls_policy FROM tls_policy_override WHERE active = '1' AND dest = '%s'
EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_tls_enforce_in_policy.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT IF(EXISTS(
SELECT 'TLS_ACTIVE' FROM alias
LEFT OUTER JOIN mailbox ON mailbox.username = alias.goto
WHERE (address='%s'
OR address IN (
SELECT CONCAT('%u', '@', target_domain) FROM alias_domain
WHERE alias_domain='%d'
)
) AND JSON_UNQUOTE(JSON_VALUE(attributes, '$.tls_enforce_in')) = '1' AND mailbox.active = '1'
), 'reject_plaintext_session', NULL) AS 'tls_enforce_in';
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_sender_dependent_default_transport_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT GROUP_CONCAT(transport SEPARATOR '') AS transport_maps
FROM (
SELECT IF(EXISTS(SELECT 'smtp_type' FROM alias
LEFT OUTER JOIN mailbox ON mailbox.username = alias.goto
WHERE (address = '%s'
OR address IN (
SELECT CONCAT('%u', '@', target_domain) FROM alias_domain
WHERE alias_domain = '%d'
)
)
AND JSON_UNQUOTE(JSON_VALUE(attributes, '$.tls_enforce_out')) = '1'
AND mailbox.active = '1'
), 'smtp_enforced_tls:', 'smtp:') AS 'transport'
UNION ALL
SELECT hostname AS transport FROM relayhosts
LEFT OUTER JOIN domain ON domain.relayhost = relayhosts.id
WHERE relayhosts.active = '1'
AND domain = '%d'
OR domain IN (
SELECT target_domain FROM alias_domain
WHERE alias_domain = '%d'
)
)
AS transport_view;
EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_transport_maps.cf
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# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT CONCAT('smtp_via_transport_maps:', nexthop) AS transport FROM transports
WHERE active = '1'
AND destination = '%s';
EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_resource_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT 'null@localhost' FROM mailbox
WHERE kind REGEXP 'location|thing|group' AND username = '%s';
EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_sasl_passwd_maps_sender_dependent.cf
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# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT CONCAT_WS(':', username, password) AS auth_data FROM relayhosts
WHERE id IN (
SELECT relayhost FROM domain
WHERE CONCAT('@', domain) = '%s'
OR domain IN (
SELECT target_domain FROM alias_domain WHERE CONCAT('@', alias_domain) = '%s'
)
)
AND active = '1'
AND username != '';
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_sasl_passwd_maps_transport_maps.cf
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# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT CONCAT_WS(':', username, password) AS auth_data FROM transports
WHERE nexthop = '%s'
AND active = '1'
AND username != ''
LIMIT 1;
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_alias_domain_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT username FROM mailbox, alias_domain
WHERE alias_domain.alias_domain = '%d'
AND mailbox.username = CONCAT('%u', '@', alias_domain.target_domain)
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AND (mailbox.active = '1' OR mailbox.active = '2')
AND alias_domain.active='1'
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_alias_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT goto FROM alias
WHERE address='%s'
AND (active='1' OR active='2');
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EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_recipient_bcc_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT bcc_dest FROM bcc_maps
WHERE local_dest='%s'
AND type='rcpt'
AND active='1';
EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_sender_bcc_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT bcc_dest FROM bcc_maps
WHERE local_dest='%s'
AND type='sender'
AND active='1';
EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_recipient_canonical_maps.cf
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# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT new_dest FROM recipient_maps
WHERE old_dest='%s'
AND active='1';
EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_domains_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT alias_domain from alias_domain WHERE alias_domain='%s' AND active='1'
UNION
SELECT domain FROM domain
WHERE domain='%s'
AND active = '1'
AND backupmx = '0'
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_mailbox_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT CONCAT(JSON_UNQUOTE(JSON_VALUE(attributes, '$.mailbox_format')), mailbox_path_prefix, '%d/%u/') FROM mailbox WHERE username='%s' AND (active = '1' OR active = '2')
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EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_relay_domain_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT domain FROM domain WHERE domain='%s' AND backupmx = '1' AND active = '1'
EOF
cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_sender_acl.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
# First select queries domain and alias_domain to determine if domains are active.
query = SELECT goto FROM alias
WHERE address='%s'
AND active='1'
AND (domain IN
(SELECT domain FROM domain
WHERE domain='%d'
AND active='1')
OR domain in (
SELECT alias_domain FROM alias_domain
WHERE alias_domain='%d'
AND active='1'
)
)
UNION
SELECT logged_in_as FROM sender_acl
WHERE send_as='@%d'
OR send_as='%s'
OR send_as='*'
OR send_as IN (
SELECT CONCAT('@',target_domain) FROM alias_domain
WHERE alias_domain = '%d')
OR send_as IN (
SELECT CONCAT('%u','@',target_domain) FROM alias_domain
WHERE alias_domain = '%d')
AND logged_in_as NOT IN (
SELECT goto FROM alias
WHERE address='%s')
UNION
SELECT username FROM mailbox, alias_domain
WHERE alias_domain.alias_domain = '%d'
AND mailbox.username = CONCAT('%u','@',alias_domain.target_domain)
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AND (mailbox.active = '1' OR mailbox.active ='2')
AND alias_domain.active='1'
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EOF
# Reject sasl usernames with smtp disabled
cat <<EOF > /opt/postfix/conf/sql/mysql_sasl_access_maps.cf
# Autogenerated by mailcow
user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
dbname = ${DBNAME}
query = SELECT 'REJECT' FROM mailbox WHERE username = '%u' AND JSON_UNQUOTE(JSON_VALUE(attributes, '$.smtp_access')) = '0';
EOF
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cat <<EOF > /opt/postfix/conf/sql/mysql_virtual_spamalias_maps.cf
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# Autogenerated by mailcow
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user = ${DBUSER}
password = ${DBPASS}
hosts = unix:/var/run/mysqld/mysqld.sock
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dbname = ${DBNAME}
query = SELECT goto FROM spamalias
WHERE address='%s'
AND validity >= UNIX_TIMESTAMP()
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EOF
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sed -i '/User overrides/q' /opt/postfix/conf/main.cf
echo >> /opt/postfix/conf/main.cf
if [ -f /opt/postfix/conf/extra.cf ]; then
cat /opt/postfix/conf/extra.cf >> /opt/postfix/conf/main.cf
fi
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if [ ! -f /opt/postfix/conf/custom_transport.pcre ]; then
echo "Creating dummy custom_transport.pcre"
touch /opt/postfix/conf/custom_transport.pcre
fi
if [[ ! -f /opt/postfix/conf/custom_postscreen_whitelist.cidr ]]; then
echo "Creating dummy custom_postscreen_whitelist.cidr"
echo '# Autogenerated by mailcow' > /opt/postfix/conf/custom_postscreen_whitelist.cidr
fi
# Fix SMTP last login on slaves
sed -i "s/__REDIS_SLAVEOF_IP__/${REDIS_SLAVEOF_IP}/g" /usr/local/bin/smtpd_last_login.sh
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# Fix Postfix permissions
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chown -R root:postfix /opt/postfix/conf/sql/ /opt/postfix/conf/custom_transport.pcre
chmod 640 /opt/postfix/conf/sql/*.cf /opt/postfix/conf/custom_transport.pcre
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chgrp -R postdrop /var/spool/postfix/public
chgrp -R postdrop /var/spool/postfix/maildrop
postfix set-permissions
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# Check Postfix configuration
postconf -c /opt/postfix/conf > /dev/null
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if [[ $? != 0 ]]; then
echo "Postfix configuration error, refusing to start."
exit 1
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else
postfix -c /opt/postfix/conf start
sleep 126144000
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fi