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Configuration

Application configuration

Configuration is done in .env.local file. First, copy template file to appropriate location:

cp doc/examples/.env.local.template .env.local

The file is populated with default values and decently documented. Each string that contains a space must be surrounded by quotes ''. Modify this file to reflect your configuration. Please pay special attention to _SERVERS fields - they have to be provided in json array format, for example:

IMAP_SERVERS='[imap://imap.example.org, imaps://imap.example.org]'
SMTP_SERVERS='[smtp://smtp.example.org::587/tls]'

The server URLs follow the "protocol://[u:auth@]host[:port][/tls]" format. Providing protocol and host is mandatory. Valid values for protocol include:

  • imap
  • imaps
  • smtp
  • ssmtp
  • smtps
  • submission
  • pop3
  • pop3s

Optional fields include auth and port. Additionally, tls flag can be specified to indicate that the server supports STARTTLS command. Default values for port are selected automatically, based on the protocol. The auth option defaults to password-cleartext. Valid values for auth include:

  • password-cleartext
  • password-encrypted
  • NTLM
  • GSSAPI

Configuration default values

PROVIDER_NAME=
PROVIDER_DOMAIN=
PROVIDER_SHORT_NAME=

DATABASE_DRIVER=pdo_mysql
DATABASE_URL=
DATABASE_DOMAIN_QUERY=
DATABASE_USER_QUERY=
DATABASE_USER_NAME_FIELD=
DATABASE_USER_DN_FIELD=

LDAP_URL=ldap://localhost
LDAP_DOMAIN_BASE=
LDAP_DOMAIN_FILTER=(&(associatedDomain=%s)(objectClass=organizationalUnit))
LDAP_DOMAIN_ATTRIBUTE=associatedDomain
LDAP_USER_BASE=
LDAP_USER_FILTER=(&(mail=%s)(objectClass=person))
LDAP_USER_NAME_ATTRIBUTE=mail
LDAP_USER_DN_ATTRIBUTE=cn

IMAP_SERVERS='["imap://imap.${PROVIDER_DOMAIN}/tls"]'
SMTP_SERVERS='["smtp://smtp.${PROVIDER_DOMAIN}:587/tls"]'
POP3_SERVERS='[]'
ACTIVESYNC_URL=

After each change in .env.local you must run the following command:

# bin/console cache:clear --env=prod

otherwise your changes won't take an effect.

Web server configuration

The application provides the following case-sensitive routes:

GET  /mail/config-v1.1.xml?emailaddress=
POST /autodiscover/autodiscover.xml
GET  /email.mobileconfig?email=

To provide maximum compatibility and security it's desirable to run this application behind a http reverse proxy.

Example apache configuration:

This configuration requires mod_proxy_fcgi, mod_setenvif, mod_rewrite and php7.2-fpm:

# sudo a2enmod proxy_fcgi setenvif rewrite
# sudo a2enconf php7.2-fpm

/etc/apache2/sites-available/090-autodiscover.conf

<VirtualHost localhost:8000>
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/autodiscover.xml/public

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    <Directory /var/www/html/public>
        AllowOverride None
        Order Allow,Deny
        Allow from All

        DirectoryIndex index.php
        FallbackResource /index.php

        <IfModule mod_negotiation.c>
            Options -MultiViews
        </IfModule>

        <IfModule mod_rewrite.c>
            RewriteEngine On

            RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$
            RewriteRule ^(.*) - [E=BASE:%1]

            RewriteCond %{HTTP:Authorization} .
            RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

            RewriteCond %{ENV:REDIRECT_STATUS} ^$
            RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=301,L]

            RewriteCond %{REQUEST_FILENAME} -f
            RewriteRule ^ - [L]

            RewriteRule ^ %{ENV:BASE}/index.php [L]
        </IfModule>

        <IfModule !mod_rewrite.c>
            <IfModule mod_alias.c>
                RedirectMatch 307 ^/$ /index.php/
            </IfModule>
        </IfModule>
    </Directory>
    <Directory /var/www/html/public/bundles>
        FallbackResource disabled
    </Directory>
</VirtualHost>

Example nginx reverse proxy configuration:

To use the reverse proxy you must install nginx:

# sudo apt install nginx

/etc/nginx/sites-available/autodiscover

server {
    server_name example.org, autoconfig.example.org autodiscover.example.org;

    proxy_redirect           off;
    proxy_set_header         X-Real-IP $remote_addr;
    proxy_set_header         X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header         Host $http_host;
    proxy_set_header         X-Forwarded-Proto $scheme;

    location ~* ^\/(\.well-known\/autoconfig\/)?(mail\/config-v1\.1\.xml) {
        proxy_pass http://localhost:8000/mail/config-v1.1.xml$is_args$args;
    }

    location ~* ^\/(autodiscover\/autodiscover)(\.xml|\.json) {
        proxy_pass http://localhost:8000/autodiscover/autodiscover$2;
    }

    location ~* ^\/(email\.mobileconfig) {
        proxy_pass http://localhost:8000/email.mobileconfig$is_args$args;
    }

    listen [::]:443 ssl;
    listen 443 ssl;
    ssl_certificate /etc/letsencrypt/live/example.org/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.org/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
}