### Adding ldap-mailcow Container to docker-compose (YAML)

Source: https://github.com/programmierus/ldap-mailcow/blob/master/README.md

Defines a new service `ldap-mailcow` in `docker-compose.override.yml` to integrate the LDAP sync tool. It configures the image, network mode, container name, dependencies, volume mounts for database and configuration files, and essential environment variables for LDAP and mailcow API connectivity and sync settings.

```yaml
ldap-mailcow:
    image: programmierus/ldap-mailcow
    network_mode: host
    container_name: mailcowcustomized_ldap-mailcow
    depends_on:
        - nginx-mailcow
    volumes:
        - ./data/ldap:/db:rw
        - ./data/conf/dovecot:/conf/dovecot:rw
        - ./data/conf/sogo:/conf/sogo:rw
    environment:
        - LDAP-MAILCOW_LDAP_URI=ldap(s)://dc.example.local
        - LDAP-MAILCOW_LDAP_BASE_DN=OU=Mail Users,DC=example,DC=local
        - LDAP-MAILCOW_LDAP_BIND_DN=CN=Bind DN,CN=Users,DC=example,DC=local
        - LDAP-MAILCOW_LDAP_BIND_DN_PASSWORD=BindPassword
        - LDAP-MAILCOW_API_HOST=https://mailcow.example.local
        - LDAP-MAILCOW_API_KEY=XXXXXX-XXXXXX-XXXXXX-XXXXXX-XXXXXX
        - LDAP-MAILCOW_SYNC_INTERVAL=300
        - LDAP-MAILCOW_LDAP_FILTER=(&(objectClass=user)(objectCategory=person)(memberOf:1.2.840.113556.1.4.1941:=CN=Group,CN=Users,DC=example DC=local))
        - LDAP-MAILCOW_SOGO_LDAP_FILTER=objectClass='user' AND objectCategory='person' AND memberOf:1.2.840.113556.1.4.1941:='CN=Group,CN=Users,DC=example DC=local'
```

--------------------------------

### PHP Workaround for WebUI/EAS Authentication (PHP)

Source: https://github.com/programmierus/ldap-mailcow/blob/master/README.md

Provides a PHP code snippet to be inserted into the mailcow WebUI's `functions.inc.php` file. This code attempts IMAP authentication against Dovecot using the provided user credentials as a workaround to enable logging into the mailcow UI (and potentially EAS via app passwords) with LDAP credentials, bypassing the default mailcow UI authentication mechanism. It is noted as an unsupported and risky solution.

```php
$mbox = imap_open ("{dovecot:993/imap/ssl/novalidate-cert}INBOX", $user, $pass);
if ($mbox != false) {
    imap_close($mbox);
    return "user";
}
```

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