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−Installation Prerequisites
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−You should already have installed and configured Postfix, Dovecot ≥ 1.2.0
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−and PostgreSQL.
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−
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−The Virtual Mail Manager depends on:
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−    - Python (≥ 3.2)
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−    - Psycopg¹ (≥ 2.0)
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−
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−[1] Psycopg: <http://initd.org/psycopg/> (Debian: python3-psycopg2)
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−
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−
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−Create additionally a user and groups for improved security
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−  We will create the system user `doveauth'. This user is used in the
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−  authentication process. On a Debian GNU/Linux System use this command:
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−
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−	adduser --system --home /nonexistent --no-create-home --group \
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−	--disabled-login --gecos "Dovecot IMAP/POP3 authentication user" \
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−	doveauth
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−
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−  This will create the doveauth user and group.
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−  For Dovecot ≥ 2.0 we create also the group `dovemail'. Dovecot will assign
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−  this group to all Dovecot processes.
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−  On a Debian GNU/Linux bases system run:
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−
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−	addgroup --system dovemail
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−
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−
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−Configuring PostgreSQL
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−(for more details see:
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−    http://vmm.localdomain.org/installation/postgresql_configuration.html)
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−
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−* /etc/postgresql/9.1/main/pg_hba.conf
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−  [ if you prefer to connect via TCP/IP ]
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−    # IPv4 local connections:
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−    host    mailsys     +mailsys    127.0.0.1/32          md5
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−  [ if you want to connect through a local Unix-domain socket ]
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−    # "local" is for Unix domain socket connections only
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−    local   mailsys     +mailsys                          md5
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−
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−    # reload configuration
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−    /etc/init.d/postgresql force-reload
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−
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−* Create a database superuser if necessary:
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−    # as root run: su - postgres
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−    # if you have sudo privileges run: sudo su - postgres
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−    # create your superuser, which will be able to create users and databases
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−    createuser -s -d -r -E -e -P $USERNAME
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−
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−* As superuser create the database and db users for vmm, Postfix and Dovecot
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−    connecting to PostgreSQL:
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−    psql template1
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−
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−    # create users, group and the database
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−    CREATE ROLE vmm LOGIN ENCRYPTED PASSWORD 'DB PASSWORD for vmm';
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−    CREATE ROLE dovecot LOGIN ENCRYPTED password 'DB PASSWORD for Dovecot';
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−    CREATE ROLE postfix LOGIN ENCRYPTED password 'DB PASSWORD for Postfix';
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−    CREATE ROLE mailsys WITH USER postfix, dovecot, vmm;
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−    CREATE DATABASE mailsys WITH OWNER vmm ENCODING 'UTF8';
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−    \q
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−
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−    # connect to the new database
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−    psql mailsys vmm -W -h 127.0.0.1
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−    # import the database structure for Dovecot ≥ 1.2.0
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−    \i vmm-x.y.z/pgsql/create_tables-dovecot-1.2.x.pgsql
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−    # leave psql
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−    \q
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−
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−    # set permissions for your Dovecot and Postfix users
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−    # see python set-permissions.py -h for details
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−    python vmm-x.y.z/pgsql/set-permissions.py -a -H 127.0.0.1 -U vmm
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−
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−Create directory for your mails
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−  mkdir /srv/mail
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−  cd /srv/mail/
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−  mkdir 0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z
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−  chmod 771 /srv/mail
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−  chmod 751 /srv/mail/*
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−
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−
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−For Dovecot ≥ 2.0 read the file Configure.Dovecot_2
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−Configuring Dovecot v1.2.x
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−
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−* /etc/dovecot/dovecot.conf
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−    # all your other settings
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−    #disable_plaintext_auth = no
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−    mail_location = maildir:~/Maildir
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−    first_valid_uid = 70000
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−    first_valid_gid = 70000
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−    protocol lda {
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−      postmaster_address = postmaster@YOUR-DOMAIN.TLD
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−    }
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−    auth default {
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−      mechanisms = cram-md5 login plain
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−      passdb sql {
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−        args = /etc/dovecot/dovecot-sql.conf
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−      }
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−      userdb sql {
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−        args = /etc/dovecot/dovecot-sql.conf
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−      }
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−      user = doveauth
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−      socket listen {
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−        master {
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−          path = /var/run/dovecot/auth-master
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−          mode = 0600
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−        }
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−        client {
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−          path = /var/spool/postfix/private/dovecot-auth
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−          mode = 0660
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−          user = postfix
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−          group = postfix
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−        }
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−      }
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−    }
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−
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−* /etc/dovecot/dovecot-sql.conf
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−    driver = pgsql
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−    connect = host=localhost dbname=mailsys user=dovecot password=$Dovecot_PASS
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−    default_pass_scheme = CRAM-MD5
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−    password_query = SELECT userid AS "user", password FROM dovecotpassword('%Ln', '%Ld') WHERE %Ls
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−    user_query = SELECT home, uid, gid, mail FROM dovecotuser('%Ln', '%Ld')
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−
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−Provide a root SETUID copy of Dovecot's deliver agent for Postfix
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−
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−/!\ Only required with Dovecot v.1.2.x.
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−    With Dovecot ≥ v2.0 use Dovecot's lmtp!
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−
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−    mkdir -p /usr/local/lib/dovecot
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−    chmod 700 /usr/local/lib/dovecot
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−    chown nobody /usr/local/lib/dovecot
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−    cp /usr/lib/dovecot/deliver /usr/local/lib/dovecot/
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−    chown root:`id -g nobody` /usr/local/lib/dovecot/deliver
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−    chmod u+s,o-rwx /usr/local/lib/dovecot/deliver
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−
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−
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−
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−Start or restart Dovecot
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−
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−
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−Configuring Postfix's master.cf
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−    
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−/!\ Only required with Dovecot v.1.2.x.
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−    # Add Dovecot's deliver agent
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−    dovecot   unix  -       n       n       -       -       pipe
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−      flags=DORhu user=nobody argv=/usr/local/lib/dovecot/deliver -f ${sender}
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−      -d ${user}@${nexthop} -n -m ${extension}
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−
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−
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−
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−Configuring Postfix's main.cf
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−    sql      = pgsql:${config_directory}/
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−    proxysql = proxy:${sql}
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−
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−    # relocated users from the database
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−    #relocated_maps = ${proxysql}pgsql-relocated_maps.cf
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−
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−    # transport settings from our database
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−    transport_maps = ${proxysql}pgsql-transport_maps.cf
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−
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−    # virtual domains
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−    virtual_mailbox_domains = ${proxysql}pgsql-virtual_mailbox_domains.cf
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−    virtual_alias_maps = ${proxysql}pgsql-virtual_alias_maps.cf
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−    virtual_minimum_uid = 70000
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−    virtual_uid_maps = ${sql}pgsql-virtual_uid_maps.cf
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−    virtual_gid_maps = ${sql}pgsql-virtual_gid_maps.cf
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−    virtual_mailbox_base = /
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−    virtual_mailbox_maps = ${proxysql}pgsql-virtual_mailbox_maps.cf
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−
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−    # dovecot LDA (only recommended with Dovecot v1.2.x)
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−    #dovecot_destination_recipient_limit = 1
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−    #virtual_transport = dovecot:
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−
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−    # dovecot lmtp
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−    virtual_transport = lmtp:unix:private/dovecot-lmtp
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−
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−    # dovecot SASL
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−    smtpd_sasl_type = dovecot
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−    smtpd_sasl_path = private/dovecot-auth
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−    smtpd_sasl_auth_enable = yes
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−    # Keep smtpd_sasl_local_domain identical to Dovecot's auth_default_realm:
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−    # empty. Both are empty by default. Let it commented out.
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−    # Read more at: http://wiki.dovecot.org/Authentication/Mechanisms/DigestMD5
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−    #smtpd_sasl_local_domain =
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−    smtpd_sasl_security_options = noplaintext, noanonymous
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−    #smtpd_sasl_security_options = noanonymous
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−    #broken_sasl_auth_clients = yes
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−
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−    smtpd_recipient_restrictions =
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−      permit_mynetworks
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−      permit_sasl_authenticated
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−      reject_unauth_destination
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−
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−
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−Installing the Virtual Mail Manager and configure the rest
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−
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−    Installing from Mercurial or vmm-x.y.z.tar.gz
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−    after cloning from the hg repo or extracting the archive change into the
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−    new directory and type:
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−        ./install.sh
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−    edit all the pgsql-*.cf files in /etc/postfix
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−
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−    reload postfix
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−
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−    # configure the Virtual Mail Manager
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−    # vmm.cfg(5) - configuration file for vmm
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−    #
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−    # For Dovecot v1.2.x use 'dovecot:' as domain.transport
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−    # When using Dovecot v2.x use 'lmtp:unix:private/dovecot-lmtp' as
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−    # domain.transport
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−    vmm configure
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−
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−    # for help type
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−    # vmm(1) - command line tool to manage email domains/accounts/aliases
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−    vmm help
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−