How to Install Postfix & Dovecot with MariaDB(or MySQL) on Ubuntu-20.04 ##############################################################
Environment
Device : Odroid-HC2
OS : Ubuntu-20.04
Pre Insalled App : MariaDB(or MySQL)
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VIDEO
1. Install Postfix & Dovecot $ sudo apt-get install postfix postfix-mysql dovecot-core dovecot-imapd dovecot-lmtpd dovecot-pop3d dovecot-mysql
$ sudo systemctl restart dovecot
$ sudo netstat -lnp
2. Setup mariadb ##############################################################
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database : mail_server
accout : usermail
password : test@test
host : localhost
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$ sudo mysql -u root -p
### Generate Database for mail
> create database mail_server;
### Generate Acccout for mail
> GRANT SELECT ON mail_server.* TO 'usermail'@'127.0.0.1' IDENTIFIED BY 'test@test';
> flush privileges;
> GRANT SELECT ON mail_server.* TO 'usermail'@'localhost' IDENTIFIED BY 'test@test';
> flush privileges;
### Generate Virtual Domain Table
> USE mail_server;
> CREATE TABLE `virtual_domains` (
`id` INT NOT NULL AUTO_INCREMENT,
`name` VARCHAR(50) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
### Generate Virtual User Table
> CREATE TABLE `virtual_users` (
`id` INT NOT NULL AUTO_INCREMENT,
`domain_id` INT NOT NULL,
`password` VARCHAR(106) NOT NULL,
`email` VARCHAR(120) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `email` (`email`),
FOREIGN KEY (domain_id) REFERENCES virtual_domains(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
### Generate Virtual Alias Table
> CREATE TABLE `virtual_aliases` (
`id` INT NOT NULL AUTO_INCREMENT,
`domain_id` INT NOT NULL,
`source` varchar(100) NOT NULL,
`destination` varchar(100) NOT NULL,
PRIMARY KEY (`id`),
FOREIGN KEY (domain_id) REFERENCES virtual_domains(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
### Insert Virtual Domain
> INSERT INTO mail_server.virtual_domains
(`id` ,`name`)
VALUES
('1', 'test.com'),
('2', 'test.test.com'),
('3', 'test'),
('4', 'mail.test.com'),
('5', 'localhost.test.com'),
('6', 'localhost');
### Insert Virtual Mail User
> INSERT INTO `mail_server`.`virtual_users`
(`id`, `domain_id`, `password` , `email`)
VALUES
('1', '1', ENCRYPT('test@test', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))), 'test@test.com'),
('2', '1', ENCRYPT('test@test', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))), 'net@test.com'),
('3', '1', ENCRYPT('test@test', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))), 'net1@test.com'),
('4', '1', ENCRYPT('test@test', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))), 'net2@test.com');
### Insert Virtual Alias
> INSERT INTO `mail_server`.`virtual_aliases`
(`id`, `domain_id`, `source`, `destination`)
VALUES
('1', '1', 'admin@test.com', 'test@test.com'),
('2', '1', 'root@test.com', 'test@test.com');
### Check Virtual Table
> SELECT * FROM mail_server.virtual_domains;
> SELECT * FROM mail_server.virtual_users;
> SELECT * FROM mail_server.virtual_aliases;
> quit;
$ sudo systemctl restart mariadb
3. Setup Postfix ### Setup main.cf
$ sudo cp /etc/postfix/main.cf /etc/postfix/main.cf.original
$ sudo nano /etc/postfix/main.cf
Change Configuration
# TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_security_level=may => smtpd_use_tls = yes smtpd_tls_cert_file=/etc/dovecot/private/dovecot.pem smtpd_tls_key_file=/etc/dovecot/private/dovecot.key smtpd_tls_security_level=may
smtp_tls_CApath=/etc/ssl/certs
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
mydestination = $myhostname, test.com, ubt64.test.com, localhost.test.com, localhost
Insert Configuration
=> #Handing off local delivery to Dovecot's LMTP, and telling it where to store mail virtual_transport = lmtp:unix:private/dovecot-lmtp #Virtual domains, users, and aliases virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf
### Generate mysql-virtual-mailbox-domains.cf
$ sudo nano /etc/postfix/mysql-virtual-mailbox-domains.cf
user = usermail password = test@test hosts = 127.0.0.1 dbname = mail_server query = SELECT 1 FROM virtual_domains WHERE name='%s'
$ sudo service postfix restart
$ sudo postmap -q test.com mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
### Generate mysql-virtual-mailbox-maps.cf
$ sudo nano /etc/postfix/mysql-virtual-mailbox-maps.cf
user = usermail
$ sudo service postfix restart
$ sudo postmap -q test@test.com mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
### Generate mysql-virtual-alias-maps.cf
$ sudo nano /etc/postfix/mysql-virtual-alias-maps.cf
user = usermail password = test@test hosts = 127.0.0.1 dbname = mail_server query = SELECT destination FROM virtual_aliases WHERE source='%s'
$ sudo service postfix restart
$ sudo postmap -q admin@test.com mysql:/etc/postfix/mysql-virtual-alias-maps.cf
$ sudo nano /etc/postfix/mysql-virtual-alias-maps.cf
user = usermail password = test@test hosts = 127.0.0.1 dbname = mail_server query = SELECT destination FROM virtual_aliases WHERE source='%s'
$ sudo service postfix restart
$ sudo postmap -q admin@test.com mysql:/etc/postfix/mysql-virtual-alias-maps.cf
### Setup master.cf
$ sudo cp /etc/postfix/master.cf /etc/postfix/master.cf.orig
$ sudo nano /etc/postfix/master.cf
Change Configuration
#submission inet n - y - - smtpd # -o syslog_name=postfix/submission # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_tls_auth_only=yes # -o smtpd_reject_unlisted_recipient=no # -o smtpd_client_restrictions=$mua_client_restrictions # -o smtpd_helo_restrictions=$mua_helo_restrictions => submission inet n - y - - smtpd -o syslog_name=postfix/submission -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes # -o smtpd_tls_auth_only=yes # -o smtpd_reject_unlisted_recipient=no -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o smtpd_helo_restrictions=$mua_helo_restrictions
$ sudo service postfix restart
$ sudo netstat -lnp
check port 25 & 587
5. Setup Dovecot $ sudo cp /etc/dovecot/dovecot.conf /etc/dovecot/dovecot.conf.orig
$ sudo cp /etc/dovecot/conf.d/10-mail.conf /etc/dovecot/conf.d/10-mail.conf.orig
$ sudo cp /etc/dovecot/conf.d/10-auth.conf /etc/dovecot/conf.d/10-auth.conf.orig
$ sudo cp /etc/dovecot/dovecot-sql.conf.ext /etc/dovecot/dovecot-sql.conf.ext.orig
$ sudo cp /etc/dovecot/conf.d/10-master.conf /etc/dovecot/conf.d/10-master.conf.orig
$ sudo cp /etc/dovecot/conf.d/10-ssl.conf /etc/dovecot/conf.d/10-ssl.conf.orig
### Setup 10-master.conf
$ sudo nano /etc/dovecot/dovecot.conf
Change Configuration
!include_try /usr/share/dovecot/protocols.d/*.protocol => !include_try /usr/share/dovecot/protocols.d/*.protocol protocols = imap pop3 lmtp
### Setup 10-mail.conf
$ sudo nano /etc/dovecot/conf.d/10-mail.conf
Change Configuration
mail_location = mbox:~/mail:INBOX=/var/mail/%u => #mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_location = maildir:/var/mail/vhosts/%d/%n
mail_privileged_group = mail
### Generate domain per Virtual Host
$ sudo ls -ld /var/mail
$ sudo mkdir -p /var/mail/vhosts/test.com
$ sudo groupadd -g 5000 vmail
$ sudo useradd -g vmail -u 5000 vmail -d /var/mail
$ sudo chown -R vmail:vmail /var/mail
$ sudo nano /etc/dovecot/conf.d/10-auth.conf
Change Configuration
#disable_plaintext_auth = yes => disable_plaintext_auth = yes auth_mechanisms = plain => auth_mechanisms = plain login !include auth-system.conf.ext #!include auth-sql.conf.ext => #!include auth-system.conf.ext !include auth-sql.conf.ext
$ sudo cp /etc/dovecot/conf.d/auth-sql.conf.ext /etc/dovecot/conf.d/auth-sql.conf.ext.orig
$ sudo nano /etc/dovecot/conf.d/auth-sql.conf.ext
Change Configuration
passdb { driver = sql # Path for SQL configuration file, see example-config/dovecot-sql.conf.ext args = /etc/dovecot/dovecot-sql.conf.ext } userdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } => passdb { driver = sql # Path for SQL configuration file, see example-config/dovecot-sql.conf.ext args = /etc/dovecot/dovecot-sql.conf.ext } userdb { driver = static args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n } $ sudo nano /etc/dovecot/dovecot-sql.conf.ext # Database driver: mysql, pgsql, sqlite #driver = => # Database driver: mysql, pgsql, sqlite driver = mysql #connect = => connect = host=127.0.0.1 dbname=mail_server user=usermail password=test@test #default_pass_scheme = MD5 => default_pass_scheme = SHA512-CRYPT #password_query = \ # SELECT username, domain, password \ # FROM users WHERE username = '%n' AND domain = '%d' => password_query = \ SELECT email as user, password \ FROM virtual_users WHERE email='%u';
### Change File Owner & Permissions
$ sudo chown -R vmail:dovecot /etc/dovecot
$ sudo chmod -R 771 /etc/dovecot
### Setup 10-master.conf
$ sudo -i
# nano /etc/dovecot/conf.d/10-master.conf
Change Configuration
service imap-login { inet_listener imap { #port = 143 } inet_listener imaps { #port = 993 #ssl = yes } } => service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service pop3-login { inet_listener pop3 { #port = 110 } inet_listener pop3s { #port = 995 #ssl = yes } } => service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service lmtp { unix_listener lmtp { #mode = 0666 } => service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { mode = 0600 user = postfix group = postfix } unix_listener auth-userdb { #mode = 0666 #user = #group = } => unix_listener auth-userdb { mode = 0600 user = vmail #group = } # Postfix smtp-auth #unix_listener /var/spool/postfix/private/auth { # mode = 0666 #} => # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 user = postfix group = postfix } # Auth process is run as this user. #user = $default_internal_user } => # Auth process is run as this user. #user = $default_internal_user user = dovecot }
# Change service auth-worker parametet
service auth-worker { # Auth worker process is run as root by default, so that it can access # /etc/shadow. If this isn't necessary, the user should be changed to # $default_internal_user. #user = root } => service auth-worker { # Auth worker process is run as root by default, so that it can access # /etc/shadow. If this isn't necessary, the user should be changed to # $default_internal_user. user = vmail }
### Setup 10-ssl.conf
$ sudo nano /etc/dovecot/conf.d/10-ssl.conf
Change Configuration
ssl = yes
ssl_cert = </etc/dovecot/private/dovecot.pem
$ sudo systemctl restart dovecot.service
