Postfix instead of nginx streams
Signed-off-by: Egor Savkin <es@m-labs.hk>
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# See /usr/share/postfix/main.cf.dist for a commented, more complete version
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# Debian specific: Specifying a file name will cause the first
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# line of that file to be used as the name. The Debian default
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# is /etc/mailname.
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#myorigin = /etc/mailname
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smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
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biff = no
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# appending .domain is the MUA's job.
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append_dot_mydomain = no
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# Uncomment the next line to generate "delayed mail" warnings
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#delay_warning_time = 4h
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readme_directory = no
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# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 3.6 on
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# fresh installs.
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compatibility_level = 3.6
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# TLS parameters
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smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
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smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
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smtpd_tls_security_level=may
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smtp_tls_CApath=/etc/ssl/certs
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smtp_tls_security_level=may
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smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
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smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
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myhostname = mail.m-labs-intl.com
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mydomain = m-labs-intl.com
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alias_maps = hash:/etc/aliases
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alias_database = hash:/etc/aliases
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myorigin = $mydomain
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#mydestination = $myhostname, m-labs-intl.com, localhost.localdomain, localhost
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mydestination =
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relayhost = mail.m-labs.hk
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#relay_domains = $mydomain
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local_transport = error:local delivery disabled
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mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
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mailbox_size_limit = 0
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recipient_delimiter = +
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inet_interfaces = all
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inet_protocols = all
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virtual_alias_maps = hash:/etc/postfix/virtual
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virtual_alias_domains = $mydomain m-labs.hk
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# DKIM
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milter_default_action = accept
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milter_protocol = 2
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smtpd_milters = inet:localhost:8891
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non_smtpd_milters = inet:localhost:8891
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@ -59,29 +59,3 @@ http {
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include /etc/nginx/conf.d/*.conf;
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include /etc/nginx/sites-enabled/*;
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}
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stream {
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# Upstream mail servers
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upstream smtp_backend {
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server mail.m-labs.hk:25;
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}
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upstream submission_backend {
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server mail.m-labs.hk:587;
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}
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# SMTP
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server {
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listen 25;
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proxy_pass smtp_backend;
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proxy_protocol on;
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}
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# Submission (Authenticated SMTP)
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server {
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listen 587;
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proxy_pass submission_backend;
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proxy_protocol on;
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}
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}
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@ -0,0 +1,32 @@
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# NOTE: This is a legacy configuration file. It is not used by the opendkim
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# systemd service. Please use the corresponding configuration parameters in
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# /etc/opendkim.conf instead.
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#
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# Previously, one would edit the default settings here, and then execute
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# /lib/opendkim/opendkim.service.generate to generate systemd override files at
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# /etc/systemd/system/opendkim.service.d/override.conf and
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# /etc/tmpfiles.d/opendkim.conf. While this is still possible, it is now
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# recommended to adjust the settings directly in /etc/opendkim.conf.
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#
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#DAEMON_OPTS=""
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# Change to /var/spool/postfix/run/opendkim to use a Unix socket with
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# postfix in a chroot:
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#RUNDIR=/var/spool/postfix/run/opendkim
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RUNDIR=/run/opendkim
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#
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# Uncomment to specify an alternate socket
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# Note that setting this will override any Socket value in opendkim.conf
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# default:
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SOCKET=local:$RUNDIR/opendkim.sock
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# listen on all interfaces on port 54321:
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#SOCKET=inet:54321
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# listen on loopback on port 12345:
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#SOCKET=inet:12345@localhost
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# listen on 192.0.2.1 on port 12345:
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#SOCKET=inet:12345@192.0.2.1
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USER=opendkim
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GROUP=opendkim
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PIDFILE=$RUNDIR/$NAME.pid
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EXTRAAFTER=
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SOCKET="inet:8891@localhost"
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@ -0,0 +1,57 @@
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# This is a basic configuration for signing and verifying. It can easily be
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# adapted to suit a basic installation. See opendkim.conf(5) and
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# /usr/share/doc/opendkim/examples/opendkim.conf.sample for complete
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# documentation of available configuration parameters.
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Syslog yes
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SyslogSuccess yes
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#LogWhy no
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# Common signing and verification parameters. In Debian, the "From" header is
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# oversigned, because it is often the identity key used by reputation systems
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# and thus somewhat security sensitive.
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Canonicalization relaxed/simple
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#Mode sv
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#SubDomains no
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OversignHeaders From
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# Signing domain, selector, and key (required). For example, perform signing
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# for domain "example.com" with selector "2020" (2020._domainkey.example.com),
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# using the private key stored in /etc/dkimkeys/example.private. More granular
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# setup options can be found in /usr/share/doc/opendkim/README.opendkim.
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#Domain example.com
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#Selector 2020
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#KeyFile /etc/dkimkeys/example.private
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# In Debian, opendkim runs as user "opendkim". A umask of 007 is required when
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# using a local socket with MTAs that access the socket as a non-privileged
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# user (for example, Postfix). You may need to add user "postfix" to group
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# "opendkim" in that case.
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UserID opendkim
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UMask 007
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# Socket for the MTA connection (required). If the MTA is inside a chroot jail,
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# it must be ensured that the socket is accessible. In Debian, Postfix runs in
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# a chroot in /var/spool/postfix, therefore a Unix socket would have to be
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# configured as shown on the last line below.
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Socket local:/run/opendkim/opendkim.sock
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#Socket inet:8891@localhost
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#Socket inet:8891
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#Socket local:/var/spool/postfix/opendkim/opendkim.sock
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PidFile /run/opendkim/opendkim.pid
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# Hosts for which to sign rather than verify, default is 127.0.0.1. See the
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# OPERATION section of opendkim(8) for more information.
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#InternalHosts 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12
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# The trust anchor enables DNSSEC. In Debian, the trust anchor file is provided
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# by the package dns-root-data.
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TrustAnchorFile /usr/share/dns/root.key
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#Nameservers 127.0.0.1
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Domain m-labs-intl.com
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KeyFile /etc/postfix/dkim.key
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Selector mail
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SOCKET inet:8891@localhost
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@ -1,6 +1,6 @@
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#!/usr/bin/env bash
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apt install git nginx-full python3 python3.12-venv python3-pip
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apt install git nginx-full python3 python3.12-venv python3-pip postfix opendkim opendkim-tools
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snap install --classic certbot
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ln -s /snap/bin/certbot /usr/bin/certbot
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useradd -m rfqserver
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@ -49,3 +49,14 @@ service nginx restart
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certbot --nginx
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service nginx restart
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cp main.cf /etc/postfix/main.cf
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cp virtual /etc/postfix/virtual
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postmap /etc/postfix/virtual
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cp opendkim /etc/default/opendkim
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cp opendkim.conf /etc/opendkim.conf
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opendkim-genkey -t -s mail -d m-labs-intl.com
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cp mail.private /etc/postfix/dkim.key
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service opendkim restart
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service postfix restart
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@ -0,0 +1 @@
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es@m-labs-intl.com es@m-labs.hk
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