Todo:

• Postfix: limiter les utilisateurs : /etc/postfix/sql/sql-relaydomains.cf
• Autoconfig
• Quotas
• backup

1. Installer les paquets nécessaires:

   apt update
   apt-get install postfix postfix-mysql mariadb-server

   Choisir Internet Site, définir le nom du serveur ainsi que l'adresse pour le postmaster.

2. Sécuriser l'installation maria-db

   mysql_secure_installation

3. Vérifier la configuration Mysql:
   1. Editer le fichier client

      nano /etc/mysql/mariadb.conf.d/50-client.cnf 

      Il faut vérifier que la ligne suivante est présente

      [client]
      default-character-set          = utf8mb4

   2. Editer le fichier mysql_client

      nano /etc/mysql/mariadb.conf.d/50-mysql-client.cnf 

      Et vérifier si la configuration suivante est aussi définie:

      [mysql]
      default-character-set          = utf8mb4

   3. Editer le fichier server

      nano /etc/mysql/mariadb.conf.d/50-server.cnf 

      Et vérifier si la configuration suivante est aussi définie:

      [mysqld]
      character-set-client-handshake = FALSE
      character-set-server           = utf8mb4
      collation-server               = utf8mb4_unicode_ci
      innodb_file_per_table          = TRUE
      innodb_file_format             = barracuda
      innodb_large_prefix            = TRUE
      max_allowed_packet     = 128M

4. Ajouter root dans le groupe de postfix

   adduser root postfix

5. Editer le fichier master.cf

   nano /etc/postfix/master.cf

   Modifier/ajouter les lignes suivantes:

   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_sasl_type=dovecot
     -o smtpd_sasl_path=private/auth
   #  -o smtpd_client_restrictions=$mua_client_restrictions
   #  -o smtpd_helo_restrictions=$mua_helo_restrictions
   #  -o smtpd_sender_restrictions=$mua_sender_restrictions
   #  -o smtpd_recipient_restrictions=
   #  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
     -o milter_macro_daemon_name=ORIGINATING
   # Ancienne version LDA
   #dovecot   unix  -       n       n       -       -       pipe
   #    flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient}

6. Editer à présent le fichier main.cf

   nano /etc/postfix/main.cf

   Et veiller à ce que les lignes ressemblent à ceci:

   myhostname = mail3.makeitsimple.be
   mydomain = makeitsimple.be  
   myorigin = $myhostname
   inet_interfaces = all 
   inet_protocols = all 
   mydestination = $myhostname, localhost.$mydomain, localhost
   smtpd_recipient_restrictions = permit_mynetworks reject_unauth_destination
   smtpd_sender_restrictions = reject_unknown_sender_domain
   home_mailbox = Maildir/
   
   append_dot_mydomain = no
   biff = no
   config_directory = /etc/postfix
   dovecot_destination_recipient_limit = 1
   message_size_limit = 4194304
   smtpd_tls_key_file = /etc/postfix/ssl/yourkey.key           
   smtpd_tls_cert_file = /etc/postfix/ssl/yourcertificate.crt  
   smtpd_use_tls=yes
   smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
   smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
   smtpd_tls_security_level=may
   #Transport LDA
   #virtual_transport = dovecot
   #Transport LMTP
   virtual_transport = lmtp:unix:private/dovecot-lmtp
   smtpd_sasl_type = dovecot
   smtpd_sasl_path = private/auth
   
   proxy_read_maps =
           proxy:unix:passwd.byname
           proxy:mysql:/etc/postfix/sql/sql-aliases.cf
           proxy:mysql:/etc/postfix/sql/sql-domains.cf
           proxy:mysql:/etc/postfix/sql/sql-domains-alias.cf
           proxy:mysql:/etc/postfix/sql/sql-mailboxes.cf
           proxy:mysql:/etc/postfix/sql/sql-relaydomains.cf
           proxy:mysql:/etc/postfix/sql/sql-transports.cf
   
   virtual_mailbox_domains = proxy:mysql:/etc/postfix/sql/sql-domains.cf
   virtual_alias_domains = proxy:mysql:/etc/postfix/sql/sql-domains-alias.cf
   virtual_alias_maps =
           proxy:mysql:/etc/postfix/sql/sql-aliases.cf
           proxy:mysql:/etc/postfix/sql/sql-mailboxes.cf
   
   relay_domains = proxy:mysql:/etc/postfix/sql/sql-relaydomains.cf
   transport_maps = proxy:mysql:/etc/postfix/sql/sql-transports.cf

7. Créer un répertoire pour stocker les requêtes SQL de postfix

   mkdir /etc/postfix/sql
   cd /etc/postfix/sql

8. Nous allons à présent créer plusieurs fichiers sql:

   1. nano sql-aliases.cf

      Contenu:

      # Retourne la destination d'un alias
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = select destination from aliases a inner join domains b on a.t_domains = b.id where CONCAT(address,'@',b.domain) = '%s' and a.active=1 and b.active=1

   2. nano sql-domains.cf

      Contenu:

      # Affiche les domaines autorisés
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = SELECT domain FROM domains WHERE domain='%s' AND type='0' AND active=1

   3. nano sql-domains-alias.cf

      Contenu:

      # Affiche les domaines autorisés
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = select destination from aliases where address='%s' and active=1

   4. nano sql-mailboxes.cf

      Contenu:

      # Retourne la destination d'un alias
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = select concat(a.user,'@',b.domain) from mailboxes a inner join domains b on a.t_domains = b.id where CONCAT(a.user,'@',b.domain) = '%s' and a.active=1 and b.active=1

   5. nano sql-relaydomains.cf

      Contenu:

      # # Retourne si un relay est autorisé
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = select domain from domains where type in ('1','2','3') and active =1 and domain='%s'

   6. nano sql-transports.cf

      Contenu:

      # # # Retourne le transport à utiliser
      user = posogodo-ro
      password = Password
      dbname = posogodo
      hosts = 127.0.0.1
      query = select destination from relay_transports a inner join domains b on b.id = a.t_domains where b.domain='%s' and a.active = 1 and b.active = 1 and b.type in ('2','3')

9. Modifier les droits du répertoire

   chown root:postfix /etc/postfix/sql -R
   chmod 650 /etc/postfix/sql -R

10. Redémarrer postfix

    systemctl restart postfix

1. Installer les paquets

   apt install dovecot-imapd dovecot-pop3d dovecot-mysql

2. Créer un groupe et un utilisateur vmail

   groupadd -g 6000 vmail 
   useradd -g vmail -u 6000 vmail -d /srv/vmail -m

3. Editer le fichier dovecot.conf

   nano /etc/dovecot/dovecot.conf

   Modifications à apporter:

   listen = *, ::
   
   service stats {
       unix_listener stats-reader {
           user = vmail
           group = vmail
           mode = 0660
       }
   
       unix_listener stats-writer {
           user = vmail
           group = vmail
           mode = 0660
       }
   }

4. Editer le fichier auth-system

   nano /etc/dovecot/conf.d/auth-system.conf.ext

   Et commenter tout le fichier. Autrement ceci peut affecter la rapidité du serveur.

5. Editer le fichier auth

   nano /etc/dovecot/conf.d/10-auth.conf

   Contenu à modifier:

   disable_plaintext_auth = yes
   auth_mechanisms = plain login
   !include auth-sql.conf.ext   

6. Editer le fichier auth-sql-conf

   nano /etc/dovecot/conf.d/auth-sql.conf.ext

   Voici le contenu:

   #    %u – username
   #    %n – user part in user@domain, same as %u if there’s no domain
   #    %d – domain part in user@domain, empty if there’s no domain
   #    %h – home directory
   
   
   passdb {
     driver = sql
     args = /etc/dovecot/dovecot-sql.conf.ext
   }
   userdb {
     driver = static     ## Don't forget to change this
     args = uid=vmail gid=vmail home=/srv/vmail/%d/%n/Maildir
   }

7. Editer le fichier dovecot-sql.conf

   nano /etc/dovecot/dovecot-sql.conf.ext

   Et modifier ceci:

   driver = mysql
   connect = host=127.0.0.1 dbname=posogodo user=posogodo-ro password=Password
   default_pass_scheme = SHA512-CRYPT
   password_query = SELECT concat(a.user,'@',b.`domain` ) as user, password FROM posogodo.mailboxes a left join posogodo.domains b on a.t_domains = b.id where a.active='1' and b.active='1' and concat(a.user,'@',b.`domain` ) = '%u';

8. Editer le fichier 10-mail.conf

   nano /etc/dovecot/conf.d/10-mail.conf

   Contenu:

   mail_location = maildir:/srv/vmail/%d/%n/Maildir
   namespace inbox {
     inbox = yes
   }
   mail_privileged_group = mail
   mbox_write_locks = fcntl

9. Editer le fichier 10-master

   nano /etc/dovecot/conf.d/10-master.conf

   Contenu:

   service imap-login {
     inet_listener imap {
       port = 143
     }
     inet_listener imaps {
     }
   }
   service pop3-login {
     inet_listener pop3 {
       port = 110
     }
     inet_listener pop3s {
     }
   }
   service lmtp {
     unix_listener /var/spool/postfix/private/dovecot-lmtp {
      mode = 0600
      user = postfix
      group = postfix
     }
   }
   service auth {
     unix_listener /var/spool/postfix/private/auth {
       mode = 0666
       user = postfix
       group = postfix
     }
     unix_listener auth-userdb {
      mode = 0600
      user = vmail
     }
     user = dovecot
   }
   service auth-worker {
     user = vmail
   }
   service dict {
     unix_listener dict {
     }
   }

10. Le fichier 10-ssl pour vos certificats:

    nano /etc/dovecot/conf.d/10-ssl.conf

    Contenu:

    ssl = required
    ssl_cert = </etc/letsencrypt/live/mail2.makeitsimple.be/fullchain.pem
    ssl_key = </etc/letsencrypt/live/mail2.makeitsimple.be/privkey.pem

11. Et enfin le fichier mailbox:

    nano /etc/dovecot/conf.d/15-mailboxes.conf

    Contenu:

    namespace inbox {
      # These mailboxes are widely used and could perhaps be created automatically:
      mailbox Drafts {
        auto = subscribe
        special_use = \Drafts
      }
      mailbox Spam {
        auto = subscribe
        autoexpunge = 60d    
        special_use = \Junk
      }
      mailbox Trash {
        auto = subscribe
        autoexpunge = 60d    
        special_use = \Trash
      }
    
      # For \Sent mailboxes there are two widely used names. We'll mark both of
      # them as \Sent. User typically deletes one of them if duplicates are created.
      mailbox Sent {
        auto = subscribe
        special_use = \Sent
      }
      mailbox "Sent Messages" {
        special_use = \Sent
      }
    
      # If you have a virtual "All messages" mailbox:
      #mailbox virtual/All {
      #  special_use = \All
      #  comment = All my messages
      #}
    
      # If you have a virtual "Flagged" mailbox:
      #mailbox virtual/Flagged {
      #  special_use = \Flagged
      #  comment = All my flagged messages
      #}
    }

1. Installer les paquets

   apt install dovecot-sieve dovecot-managesieved 

2. Editer le fichier 20-managesieve.conf

   nano /etc/dovecot/conf.d/20-managesieve.conf

   Et modifier le fichier de la sorte:

   protocols = $protocols sieve
   
   service managesieve-login {
     inet_listener sieve {
       port = 4190
     }
     service_count = 1
   
     process_min_avail = 0
     vsz_limit = 64M
   }
   
   protocol sieve {
     managesieve_max_line_length = 65536
     mail_max_userip_connections = 10
     managesieve_logout_format = bytes=%i/%o
     managesieve_implementation_string = Dovecot Pigeonhole
     managesieve_max_compile_errors = 5
     

3. Editer le fichier 90-sieve.conf

   nano /etc/dovecot/conf.d/90-sieve.conf

   et modifier le fichier

   plugin {
      sieve= /srv/vmail/%d/%n/sieve/.dovecot.sieve
      sieve_dir = /srv/vmail/%d/%n/sieve
   }

4. Editer le fichier 20-lmtp.conf

   nano /etc/dovecot/conf.d/20-lmtp.conf

   et rajouter sieve après $mail_plugins

5. Editer le fichier 20-imap.conf

   nano /etc/dovecot/conf.d/20-imap.conf

   et rajouter imap-sieve après $mail_plugins

6. Pour supporter Sieve dans SOGo, editer le fichier sogo.conf

   nano /etc/sogo/sogo.conf

   et rajouter les deux lignes suivantes:

    NGImap4ConnectionStringSeparator = ".";
   SOGoSieveServer = "sieve://127.0.0.1:4190";

Petite note sur rspamd:

• les configs ajoutées dans local.d remplacent tout un fichier de configuration.
• les configs ajoutées dans override.d remplacent juste les paramètres indiqués.

1. Installer les paquets:

   apt install redis-server software-properties-common lsb-release

2. Ajouter la clé gpg du dépot rspamd:

   wget -O- https://rspamd.com/apt-stable/gpg.key | apt-key add -
   echo "deb http://rspamd.com/apt-stable/ $(lsb_release -cs) main" | tee -a /etc/apt/sources.list.d/rspamd.list

3. Mettre à jour & installer rspamd:

   apt update
   apt install rspamd

4. Modification du port d'écoute:

   nano /etc/rspamd/local.d/worker-normal.inc

   Contenu

   bind_socket = "127.0.0.1:11333";

5. Modification du port milter

   nano /etc/rspamd/local.d/worker-proxy.inc

   Contenu:

   bind_socket = "127.0.0.1:11332";
   milter = yes;
   timeout = 120s;
   upstream "local" {
     default = yes;
     self_scan = yes;
   }

6. Nous allons à présent créer un code pour l'interface de gestion rspamd:

   rspamadm pw --encrypt -p Password

   Garder ce code pour l'étape suivante

7. Editer le fichier contenant le mot de passe:

   nano /etc/rspamd/local.d/worker-controller.inc

   Contenu:

   password = "lecode-encrypté"

8. Editier le fichier classifier-bayes:

   nano /etc/rspamd/local.d/classifier-bayes.conf

   Contenu:

   servers = "127.0.0.1";
   backend = "redis";
   autolearn = true;

9. Editer le fichier milter_headers:

   nano /etc/rspamd/local.d/milter_headers.conf

   Contenu:

   extended_spam_headers = true;
   skip_local = false;
   skip_authenticated = false;
   use = ["spam-header"];
   routines {
      spam-header {
   #     header = "X-Spam-Flag";
   #     value = "Yes";
        header = "X-Spam";
        value = "Yes";
      }
   }

10. Redémarrer rspamd:

    systemctl restart rspamd

11. Ajouter un reverse proxy dans nginx:

    nano /etc/nginx/sites-enabled/default

    Contenu:

    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;
    }

12. Dans 20-lmtp.conf, activer Sieve pour le lmtp

    /etc/dovecot/conf.d/20-lmtp.conf

    Contenu:

    protocol lmtp {
      # Space separated list of plugins to load (default is global mail_plugins).
      mail_plugins = $mail_plugins sieve
    }

13. Lier rspamd à postfix:

    postconf smtpd_milters=inet:127.0.0.1:11332
    postconf non_smtpd_milters=inet:127.0.0.1:11332
    postconf milter_protocol=6
    postconf milter_mail_macros="i {mail_addr} {client_addr} {client_name} {auth_authen}"
    postconf -e "milter_default_action = accept"
    service postfix restart

14. Pour tester la config:

    Pour tester la config
    rspamadm configtest 
    rspamadm configdump

15. Nous allons mettre en place un filtre en dovecot pour déplacer les spams dans le bon dossier

    nano /etc/dovecot/conf.d/90-sieve.conf

    Rajouter

    sieve_after = /etc/dovecot/sieve-after/

16. Créer le répertoire ainsi que le fichier avec la règle sieve:

    mkdir /etc/dovecot/sieve-after
    nano /etc/dovecot/sieve-after/spam-to-folder.sieve

    Contenu:

    require ["fileinto","mailbox"];
    
    if header :contains "X-Spam" "Yes" {
     fileinto :create "Junk";
     stop;
    }

17. Compiler la règle:

    sievec /etc/dovecot/sieve-after/spam-to-folder.sieve
    service dovecot restart

1. Créer un répertoire pour stocker les clés:

   mkdir /var/lib/rspamd/dkim/

2. Créer un fichier dkim_signing

   nano /etc/rspamd/local.d/dkim_signing.conf

   Avec ceci:

   # If false, messages with empty envelope from are not signed
   allow_envfrom_empty = true;
   
   # If true, envelope/header domain mismatch is ignored
   allow_hdrfrom_mismatch = false;
   
   # If true, multiple from headers are allowed (but only first is used)
   allow_hdrfrom_multiple = false;
   
   # If true, username does not need to contain matching domain
   allow_username_mismatch = false;
   
   # Default path to key, can include '$domain' and '$selector' variables
   path = "/var/lib/rspamd/dkim/$domain.$selector.key";
   
   # Default selector to use
   selector = "dkim";
   
   # If false, messages from authenticated users are not selected for signing
   sign_authenticated = true;
   
   # If false, messages from local networks are not selected for signing
   sign_local = true;
   
   # Map file of IP addresses/subnets to consider for signing
   # sign_networks = "/some/file"; # or url
   
   # Symbol to add when message is signed
   symbol = "DKIM_SIGNED";
   
   # Whether to fallback to global config
   try_fallback = true;
   
   # Domain to use for DKIM signing: can be "header" (MIME From), "envelope" (SMTP From) or "auth" (SMTP username)
   use_domain = "header";
   
   # Domain to use for DKIM signing when sender is in sign_networks ("header"/"envelope"/"auth")
   #use_domain_sign_networks = "header";
   
   # Domain to use for DKIM signing when sender is a local IP ("header"/"envelope"/"auth")
   #use_domain_sign_local = "header";
   
   # Whether to normalise domains to eSLD
   use_esld = true;
   
   # Whether to get keys from Redis
   use_redis = false;
   
   # Hash for DKIM keys in Redis
   key_prefix = "DKIM_KEYS";
   
   # map of domains -> names of selectors (since rspamd 1.5.3)
   #selector_map = "/etc/rspamd/dkim_selectors.map";
   
   # map of domains -> paths to keys (since rspamd 1.5.3)
   #path_map = "/etc/rspamd/dkim_paths.map";
   
   # If `true` get pubkey from DNS record and check if it matches private key
   check_pubkey = false;
   # Set to `false` if you want to skip signing if public and private keys mismatch
   allow_pubkey_mismatch = true;

3. Créer une clé par domaine:

   rspamadm dkim_keygen -s 'dkim' -b 2048 -d domaine.net -k /var/lib/rspamd/dkim/domaine.net.dkim.key > domaine.net.txt

   Dans le ficher .txt vous trouverez la configuration à appliquer dans votre zone DNS avec le sous domaine dkim._domainkey

1. Installer le paquet

   apt install dovecot-antispam

2. Editer le fichier 20-imap.conf

   nano /etc/dovecot/conf.d/20-imap.conf

   et rajouter antispam à la hauteur de mail_plugins.

3. Editer le fichier 90-plugin.conf

   nano /etc/dovecot/conf.d/90-plugin.conf

   Et ajouter les lignes suivantes:

       antispam_backend = pipe
       antispam_spam    = Junk
       antispam_trash   = Trash
       antispam_mail_sendmail = /usr/local/bin/rspamc
       antispam_mail_spam     = learn_spam
       antispam_mail_notspam  = learn_ham
       antispam_mail_sendmail_args = -h;localhost:11334;-P;password 

1. Installer les paquets clamav:

   apt install clamav clamav-daemon

2. Vérifier qu'un cron tourne pour mettre à jour via freshclam
3. Editer le fichier de config

   nano /etc/rspamd/local.d/antivirus.conf

   Et mettre le code suivant:

   clamav {
     # If set force this action if any virus is found (default unset: no action is forced)
     # action = "reject";
     # message = '${SCANNER}: virus found: "${VIRUS}"';
     # Scan mime_parts seperately - otherwise the complete mail will be transfered to AV Scanner
     #attachments_only = true; # Before 1.8.1
     #scan_mime_parts = true; # After 1.8.1
     # Scanning Text is suitable for some av scanner databases (e.g. Sanesecurity)
     #scan_text_mime = false; # 1.8.1 +
     #scan_image_mime = false; # 1.8.1 +
     # If `max_size` is set, messages > n bytes in size are not scanned
     #max_size = 20000000;
     # symbol to add (add it to metric if you want non-zero weight)
     symbol = "CLAM_VIRUS";
     # type of scanner: "clamav", "fprot", "sophos" or "savapi"
     type = "clamav";
     # If set true, log message is emitted for clean messages
     #log_clean = false;
     # Prefix used for caching in Redis: scanner-specific defaults are used. If Redis is enabled and
     # multiple scanners of the same type are present, it is important to set prefix to something unique.
     #prefix = "rs_cl_";
     # For "savapi" you must also specify the following variable
     #product_id = 12345;
     # servers to query (if port is unspecified, scanner-specific default is used)
     # can be specified multiple times to pool servers
     # can be set to a path to a unix socket
     servers = "127.0.0.1:3310";
     # if `patterns` is specified virus name will be matched against provided regexes and the related
     # symbol will be yielded if a match is found. If no match is found, default symbol is yielded.
     patterns {
       # symbol_name = "pattern";
       JUST_EICAR = '^Eicar-Test-Signature$';
     }
     # In version 1.7.0+ patterns could be extended
     #patterns = {SANE_MAL = 'Sanesecurity\.Malware\.*', CLAM_UNOFFICIAL = 'UNOFFICIAL$'};
     # `whitelist` points to a map of IP addresses. Mail from these addresses is not scanned.
     whitelist = "/etc/rspamd/antivirus.wl";
   }

1. Installer la clé gpg du dépot SOGo:

   gpg --keyserver hkp://keys.gnupg.net --recv-key 0x810273C4
   gpg --armor --export 0x810273C4 | apt-key add -

2. Créer un dépot

   nano /etc/apt/sources.list.d/sogo.list

   Avec le contenu:

   # Commercials
   #deb https://<username>:<password>@packages.inverse.ca/SOGo/release/2/debian/ buster buster
   # Non-Commercials
   deb http://packages.inverse.ca/SOGo/nightly/5/debian/ buster buster

3. Rafraîchir les dépots et installer SOGo

   apt install sogo sogo-activesync memcached

4. Se connecter sur le serveur MySQL:

   mysql -u root -p

   et faire les commandes suivantes:

   CREATE DATABASE sogo;
   CREATE USER 'sogo'@'localhost' IDENTIFIED BY 'Password';
   GRANT ALL privileges ON sogo.* TO 'sogo'@'localhost';
   USE posogodo;
   CREATE VIEW sogo.sogo_view AS SELECT concat(mailboxes.user,'@', domains.domain) AS c_uid, concat(mailboxes.user,'@', domains.domain) AS c_name, domains.domain AS c_domain, concat(mailboxes.user,'@', domains.domain) AS mail, CONCAT(firstname, ' ',lastname) AS c_cn, mailboxes.password AS c_password, mailboxes.sogo_kind AS c_kind, mailboxes.sogo_multibooking AS c_multibooking FROM mailboxes LEFT JOIN domains ON mailboxes.t_domains = domains.id WHERE mailboxes.active=1 & domains.active=1 AND mailboxes.sogo_active  =1 ;

5. Editer le fichier sogo.conf:

   nano /etc/sogo/sogo.conf

   Et mettre un contenu similaire

   {
     /* *********************  Main SOGo configuration file  **********************
      *                                                                           *
      * Since the content of this file is a dictionary in OpenStep plist format,  *
      * the curly braces enclosing the body of the configuration are mandatory.   *
      * See the Installation Guide for details on the format.                     *
      *                                                                           *
      * C and C++ style comments are supported.                                   *
      *                                                                           *
      * This example configuration contains only a subset of all available        *
      * configuration parameters. Please see the installation guide more details. *
      *                                                                           *
      * ~sogo/GNUstep/Defaults/.GNUstepDefaults has precedence over this file,    *
      * make sure to move it away to avoid unwanted parameter overrides.          *
      *                                                                           *
      * **************************************************************************/
   
     /* Database configuration (mysql://, postgresql:// or oracle://) */
     //SOGoProfileURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_user_profile";
     //OCSFolderInfoURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_folder_info";
     //OCSSessionsFolderURL = "postgresql://sogo:sogo@localhost:5432/sogo/sogo_sessions_folder";
   
   
     SOGoProfileURL = "mysql://sogo:Password@127.0.0.1:3306/sogo/sogo_user_profile";
     OCSFolderInfoURL = "mysql://sogo:Password@127.0.0.1:3306/sogo/sogo_folder_info";
     OCSSessionsFolderURL = "mysql://sogo:Password@127.0.0.1:3306/sogo/sogo_sessions_folder";
   
     /* Mail */
     SOGoDraftsFolderName = Drafts;
     SOGoSentFolderName = Sent;
     SOGoTrashFolderName = Trash;
     SOGoJunkFolderName = Junk;
     SOGoIMAPServer = "localhost";
     //SOGoSieveServer = "sieve://127.0.0.1:4190";
     SOGoSMTPServer = "smtp://127.0.0.1";
     //SOGoMailDomain = acme.com;
     SOGoMailingMechanism = smtp;
     //SOGoForceExternalLoginWithEmail = NO;
     //SOGoMailSpoolPath = /var/spool/sogo;
     //Le paramètre suivant est important pour la génération de filtres Sieve
     //NGImap4ConnectionStringSeparator = ".";
   
     /* Notifications */
     //SOGoAppointmentSendEMailNotifications = NO;
     //SOGoACLsSendEMailNotifications = NO;
     //SOGoFoldersSendEMailNotifications = NO;
   
     /* Authentication */
     //SOGoPasswordChangeEnabled = YES;
   
     /* LDAP authentication example */
     //SOGoUserSources = (
     //  {
     //    type = ldap;
     //    CNFieldName = cn;
     //    UIDFieldName = uid;
     //    IDFieldName = uid; // first field of the DN for direct binds
     //    bindFields = (uid, mail); // array of fields to use for indirect binds
     //    baseDN = "ou=users,dc=acme,dc=com";
     //    bindDN = "uid=sogo,ou=users,dc=acme,dc=com";
     //    bindPassword = qwerty;
     //    canAuthenticate = YES;
     //    displayName = "Shared Addresses";
     //    hostname = "ldap://127.0.0.1:389";
     //    id = public;
     //    isAddressBook = YES;
     //  }
     //);
   
     /* LDAP AD/Samba4 example */
     //SOGoUserSources = (
     //  {
     //    type = ldap;
     //    CNFieldName = cn;
     //    UIDFieldName = sAMAccountName;
     //    baseDN = "CN=users,dc=domain,dc=tld";
     //    bindDN = "CN=sogo,CN=users,DC=domain,DC=tld";
     //    bindFields = (sAMAccountName, mail);
     //    bindPassword = password;
     //    canAuthenticate = YES;
     //    displayName = "Public";
     //    hostname = "ldap://127.0.0.1:389";
     //    filter = "mail = '*'";
     //    id = directory;
     //    isAddressBook = YES;
     //  }
     //);
   
   
     /* SQL authentication example */
     /*  These database columns MUST be present in the view/table:
      *    c_uid - will be used for authentication -  it's the username or username@domain.tld)
      *    c_name - which can be identical to c_uid -  will be used to uniquely identify entries
      *    c_password - password of the user, plain-text, md5 or sha encoded for now
      *    c_cn - the user's common name - such as "John Doe"
      *    mail - the user's mail address
      *  See the installation guide for more details
      */
     SOGoUserSources =
       (
         {
           type = sql;
           id = directory;
           displayName = "Annuaire";
           viewURL = "mysql://sogo:Pasword@127.0.0.1:3306/sogo/sogo_view";
           canAuthenticate = YES;
           isAddressBook = YES;
   	DomainFieldName = "c_domain";
   	KindFieldName = "c_kind";
   	MultipleBookingsFieldName = "c_multibooking";
           userPasswordAlgorithm = sha512-crypt;
         }
       );
     
     MySQL4Encoding = "utf8mb4";
     /* Web Interface */
     SOGoPageTitle = SOGo;
     //SOGoVacationEnabled = YES;
     //SOGoForwardEnabled = YES;
     //SOGoSieveScriptsEnabled = YES;
     //SOGoMailAuxiliaryUserAccountsEnabled = YES;
     //SOGoTrustProxyAuthentication = NO;
     //SOGoXSRFValidationEnabled = YES;
   
     /* General - SOGoTimeZone *MUST* be defined */
     SOGoLanguage = French;
     SOGoTimeZone = Europe/Brussels;
     SOGoCalendarDefaultRoles = (
       PublicDAndTViewer,
       ConfidentialDAndTViewer
     );
     //SOGoSuperUsernames = (sogo1, sogo2); // This is an array - keep the parens!
     //SxVMemLimit = 384;
     //WOPidFile = "/var/run/sogo/sogo.pid";
     SOGoMemcachedHost = "127.0.0.1";
     
     /* Debug */
     SOGoDebugRequests = YES;
     SoDebugBaseURL = YES;
     //ImapDebugEnabled = YES;
     //LDAPDebugEnabled = YES;
     //PGDebugEnabled = YES;
     //SOGoEASDebugEnabled = YES;
     MySQL4DebugEnabled = YES;
     //SOGoUIxDebugEnabled = YES;
     //WODontZipResponse = YES;
     WOLogFile = /var/log/sogo/sogo.log;
   }

6. Editer nginx

   nano /etc/nginx/sites-enabled/default

   Voici un exemple de contenu

      location ^~/SOGo
      {
         proxy_pass 'http://127.0.0.1:20000'; 
         proxy_redirect 'http://127.0.0.1:20000' default; 
         # forward user's IP address 
         proxy_set_header X-Real-IP $remote_addr; 
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
         proxy_set_header Host $host; 
         proxy_set_header x-webobjects-server-protocol HTTP/1.0; 
         proxy_set_header x-webobjects-remote-host 127.0.0.1; 
         proxy_set_header x-webobjects-server-name $server_name; 
         proxy_set_header x-webobjects-server-url $scheme://$host; 
         proxy_set_header x-webobjects-server-port $server_port; 
         proxy_connect_timeout 90;
         proxy_send_timeout 90;
         proxy_read_timeout 90;
         proxy_buffer_size 4k;
         proxy_buffers 4 32k;
         proxy_busy_buffers_size 64k;
         proxy_temp_file_write_size 64k;
         break;
      }
      location /SOGo.woa/WebServerResources/
      {
         alias /usr/lib/GNUstep/SOGo/WebServerResources/;
         allow all;
         expires max;
      }
   
      location /SOGo/WebServerResources/
      {
         alias /usr/lib/GNUstep/SOGo/WebServerResources/; 
         allow all;
         expires max;
      }
   
      location (^/SOGo/so/ControlPanel/Products/([^/]*)/Resources/(.*)$)
      {
         alias /usr/lib/GNUstep/SOGo/$1.SOGo/Resources/$2;
         expires max;
      }
   
      location (^/SOGo/so/ControlPanel/Products/[^/]*UI/Resources/.*\.(jpg|png|gif|css|js)$)
      {
         alias /usr/lib/GNUstep/SOGo/$1.SOGo/Resources/$2;
         expires max;
      }
      location ^~ /Microsoft-Server-ActiveSync 
      {
         access_log /var/log/nginx/activesync.log;
         error_log  /var/log/nginx/activesync-error.log;
         resolver localhost;
         
         proxy_connect_timeout 75;
         proxy_send_timeout 3600;
         proxy_read_timeout 3600;
         proxy_buffers 64 256k;
         
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         
         proxy_pass http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync;
         proxy_redirect http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync /;
      }

7. Redémarrer postfix & nginx:

   service postfix restart
   service sogo restart

• Postfix:
  • https://computingforgeeks.com/setup-mail-server-on-centos-with-postfix-dovecot-mysql-roundcube/
  • https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-mysql/
  • https://computingforgeeks.com/setup-mail-server-on-centos-with-postfix-dovecot-mysql-roundcube/
• Dovecot:
  • https://kaworu.ch/blog/2014/03/25/dovecot-antispam-with-rspamd/
• Rspamd:
  • https://workaround.org/ispmail/stretch/filtering-out-spam-with-rspamd
  • https://blog.debugo.fr/serveur-messagerie-rspamd/
• Sogo:
  • https://forum.iredmail.org/topic10132-iredmail-support-a-lof-of-error-such-as-no-child-available-to-handle-incoming-request.html
  • https://forum.iredmail.org/topic10785-iredmail-support-sogo-problem-with-activesync-outlook-2016.html
  • https://www.mail-archive.com/users@sogo.nu/msg28614.html
  • https://marc.info/?l=sogo-users&m=145570889316335&w=2
  • https://forum.zentyal.org/index.php?topic=33233.0