diff --git a/src/app/Backends/LDAP.php b/src/app/Backends/LDAP.php
index ddce5ece..5b7a57f4 100644
--- a/src/app/Backends/LDAP.php
+++ b/src/app/Backends/LDAP.php
@@ -1,987 +1,984 @@
 <?php
 
 namespace App\Backends;
 
 use App\Domain;
 use App\Group;
 use App\User;
 
 class LDAP
 {
     /** @const array UserSettings used by the backend */
     public const USER_SETTINGS = [
         'first_name',
         'last_name',
         'organization',
     ];
 
     /** @var ?\Net_LDAP3 LDAP connection object */
     protected static $ldap;
 
 
     /**
      * Starts a new LDAP connection that will be used by all methods
      * until you call self::disconnect() explicitely. Normally every
      * method uses a separate connection.
      *
      * @throws \Exception
      */
     public static function connect(): void
     {
         if (empty(self::$ldap)) {
             $config = self::getConfig('admin');
             self::$ldap = self::initLDAP($config);
         }
     }
 
     /**
      * Close the connection created by self::connect()
      */
     public static function disconnect(): void
     {
         if (!empty(self::$ldap)) {
             self::$ldap->close();
             self::$ldap = null;
         }
     }
 
     /**
      * Create a domain in LDAP.
      *
      * @param \App\Domain $domain The domain to create.
      *
      * @throws \Exception
      */
     public static function createDomain(Domain $domain): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
         $mgmtRootDN = \config('ldap.admin.root_dn');
 
         $domainBaseDN = "ou={$domain->namespace},{$hostedRootDN}";
 
         $aci = [
             '(targetattr = "*")'
             . '(version 3.0; acl "Deny Unauthorized"; deny (all)'
             . '(userdn != "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN
             . ' || ldap:///ou=People,' . $domainBaseDN . '??sub?(objectclass=inetorgperson)") '
             . 'AND NOT roledn = "ldap:///cn=kolab-admin,' . $mgmtRootDN . '";)',
 
             '(targetattr != "userPassword")'
             . '(version 3.0;acl "Search Access";allow (read,compare,search)'
             . '(userdn = "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN
             . ' || ldap:///ou=People,' . $domainBaseDN . '??sub?(objectclass=inetorgperson)");)',
 
             '(targetattr = "*")'
             . '(version 3.0;acl "Kolab Administrators";allow (all)'
             . '(roledn = "ldap:///cn=kolab-admin,' . $domainBaseDN
             . ' || ldap:///cn=kolab-admin,' . $mgmtRootDN . '");)'
         ];
 
         $entry = [
             'aci' => $aci,
             'associateddomain' => $domain->namespace,
             'inetdomainbasedn' => $domainBaseDN,
             'objectclass' => [
                 'top',
                 'domainrelatedobject',
                 'inetdomain'
             ],
         ];
 
         $dn = "associateddomain={$domain->namespace},{$config['domain_base_dn']}";
 
         self::setDomainAttributes($domain, $entry);
 
         if (!$ldap->get_entry($dn)) {
             $result = $ldap->add_entry($dn, $entry);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to create domain {$domain->namespace} in LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         // create ou, roles, ous
         $entry = [
             'description' => $domain->namespace,
             'objectclass' => [
                 'top',
                 'organizationalunit'
             ],
             'ou' => $domain->namespace,
         ];
 
         $entry['aci'] = array(
             '(targetattr = "*")'
             . '(version 3.0;acl "Deny Unauthorized"; deny (all)'
             . '(userdn != "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN
             . ' || ldap:///ou=People,' . $domainBaseDN . '??sub?(objectclass=inetorgperson)") '
             . 'AND NOT roledn = "ldap:///cn=kolab-admin,' . $mgmtRootDN . '";)',
 
             '(targetattr != "userPassword")'
             . '(version 3.0;acl "Search Access";allow (read,compare,search,write)'
             . '(userdn = "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN
             . ' || ldap:///ou=People,' . $domainBaseDN . '??sub?(objectclass=inetorgperson)");)',
 
             '(targetattr = "*")'
             . '(version 3.0;acl "Kolab Administrators";allow (all)'
             . '(roledn = "ldap:///cn=kolab-admin,' . $domainBaseDN
             . ' || ldap:///cn=kolab-admin,' . $mgmtRootDN . '");)',
 
             '(target = "ldap:///ou=*,' . $domainBaseDN . '")'
             . '(targetattr="objectclass || aci || ou")'
             . '(version 3.0;acl "Allow Domain sub-OU Registration"; allow (add)'
             . '(userdn = "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN . '");)',
 
             '(target = "ldap:///uid=*,ou=People,' . $domainBaseDN . '")(targetattr="*")'
             . '(version 3.0;acl "Allow Domain First User Registration"; allow (add)'
             . '(userdn = "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN . '");)',
 
             '(target = "ldap:///cn=*,' . $domainBaseDN . '")(targetattr="objectclass || cn")'
             . '(version 3.0;acl "Allow Domain Role Registration"; allow (add)'
             . '(userdn = "ldap:///uid=kolab-service,ou=Special Users,' . $mgmtRootDN . '");)',
         );
 
         if (!$ldap->get_entry($domainBaseDN)) {
             $result = $ldap->add_entry($domainBaseDN, $entry);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to create domain {$domain->namespace} in LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         foreach (['Groups', 'People', 'Resources', 'Shared Folders'] as $item) {
             if (!$ldap->get_entry("ou={$item},{$domainBaseDN}")) {
                 $result = $ldap->add_entry(
                     "ou={$item},{$domainBaseDN}",
                     [
                         'ou' => $item,
                         'description' => $item,
                         'objectclass' => [
                             'top',
                             'organizationalunit'
                         ]
                     ]
                 );
 
                 if (!$result) {
                     self::throwException(
                         $ldap,
                         "Failed to create domain {$domain->namespace} in LDAP (" . __LINE__ . ")"
                     );
                 }
             }
         }
 
         foreach (['kolab-admin'] as $item) {
             if (!$ldap->get_entry("cn={$item},{$domainBaseDN}")) {
                 $result = $ldap->add_entry(
                     "cn={$item},{$domainBaseDN}",
                     [
                         'cn' => $item,
                         'description' => "{$item} role",
                         'objectclass' => [
                             'top',
                             'ldapsubentry',
                             'nsmanagedroledefinition',
                             'nsroledefinition',
                             'nssimpleroledefinition'
                         ]
                     ]
                 );
 
                 if (!$result) {
                     self::throwException(
                         $ldap,
                         "Failed to create domain {$domain->namespace} in LDAP (" . __LINE__ . ")"
                     );
                 }
             }
         }
 
         // TODO: Assign kolab-admin role to the owner?
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Create a group in LDAP.
      *
      * @param \App\Group $group The group to create.
      *
      * @throws \Exception
      */
     public static function createGroup(Group $group): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         list($cn, $domainName) = explode('@', $group->email);
 
         $domain = $group->domain();
 
         if (empty($domain)) {
             self::throwException(
                 $ldap,
                 "Failed to create group {$group->email} in LDAP (" . __LINE__ . ")"
             );
         }
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
 
         $domainBaseDN = "ou={$domain->namespace},{$hostedRootDN}";
 
         $groupBaseDN = "ou=Groups,{$domainBaseDN}";
 
         $dn = "cn={$cn},{$groupBaseDN}";
 
         $entry = [
             'cn' => $cn,
             'mail' => $group->email,
             'objectclass' => [
                 'top',
                 'groupofuniquenames',
                 'kolabgroupofuniquenames'
             ],
             'uniqueMember' => []
         ];
 
-        self::setGroupAttributes($group, $entry);
+        self::setGroupAttributes($ldap, $group, $entry);
 
         $result = $ldap->add_entry($dn, $entry);
 
         if (!$result) {
             self::throwException(
                 $ldap,
                 "Failed to create group {$group->email} in LDAP (" . __LINE__ . ")"
             );
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Create a user in LDAP.
      *
      * Only need to add user if in any of the local domains? Figure that out here for now. Should
      * have Context-Based Access Controls before the job is queued though, probably.
      *
      * Use one of three modes;
      *
      * 1) The authenticated user account.
      *
      *    * Only valid if the authenticated user is a domain admin.
      *    * We don't know the originating user here.
      *    * We certainly don't have its password anymore.
      *
      * 2) The hosted kolab account.
      *
      * 3) The Directory Manager account.
      *
      * @param \App\User $user The user account to create.
      *
      * @throws \Exception
      */
     public static function createUser(User $user): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $entry = [
             'objectclass' => [
                 'top',
                 'inetorgperson',
                 'inetuser',
                 'kolabinetorgperson',
                 'mailrecipient',
                 'person'
             ],
             'mail' => $user->email,
             'uid' => $user->email,
             'nsroledn' => []
         ];
 
         if (!self::getUserEntry($ldap, $user->email, $dn)) {
             if (empty($dn)) {
                 self::throwException($ldap, "Failed to create user {$user->email} in LDAP (" . __LINE__ . ")");
             }
 
             self::setUserAttributes($user, $entry);
 
             $result = $ldap->add_entry($dn, $entry);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to create user {$user->email} in LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Delete a domain from LDAP.
      *
      * @param \App\Domain $domain The domain to delete
      *
      * @throws \Exception
      */
     public static function deleteDomain(Domain $domain): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
         $mgmtRootDN = \config('ldap.admin.root_dn');
 
         $domainBaseDN = "ou={$domain->namespace},{$hostedRootDN}";
 
         if ($ldap->get_entry($domainBaseDN)) {
             $result = $ldap->delete_entry_recursive($domainBaseDN);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to delete domain {$domain->namespace} from LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         if ($ldap_domain = $ldap->find_domain($domain->namespace)) {
             if ($ldap->get_entry($ldap_domain['dn'])) {
                 $result = $ldap->delete_entry($ldap_domain['dn']);
 
                 if (!$result) {
                     self::throwException(
                         $ldap,
                         "Failed to delete domain {$domain->namespace} from LDAP (" . __LINE__ . ")"
                     );
                 }
             }
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Delete a group from LDAP.
      *
      * @param \App\Group $group The group to delete.
      *
      * @throws \Exception
      */
     public static function deleteGroup(Group $group): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         if (self::getGroupEntry($ldap, $group->email, $dn)) {
             $result = $ldap->delete_entry($dn);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to delete group {$group->email} from LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Delete a user from LDAP.
      *
      * @param \App\User $user The user account to delete.
      *
      * @throws \Exception
      */
     public static function deleteUser(User $user): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         if (self::getUserEntry($ldap, $user->email, $dn)) {
             $result = $ldap->delete_entry($dn);
 
             if (!$result) {
                 self::throwException(
                     $ldap,
                     "Failed to delete user {$user->email} from LDAP (" . __LINE__ . ")"
                 );
             }
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Get a domain data from LDAP.
      *
      * @param string $namespace The domain name
      *
      * @return array|false|null
      * @throws \Exception
      */
     public static function getDomain(string $namespace)
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $ldapDomain = $ldap->find_domain($namespace);
 
         if ($ldapDomain) {
             $domain = $ldap->get_entry($ldapDomain['dn']);
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
 
         return $domain ?? null;
     }
 
     /**
      * Get a group data from LDAP.
      *
      * @param string $email The group email.
      *
      * @return array|false|null
      * @throws \Exception
      */
     public static function getGroup(string $email)
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $group = self::getGroupEntry($ldap, $email, $dn);
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
 
         return $group;
     }
 
     /**
      * Get a user data from LDAP.
      *
      * @param string $email The user email.
      *
      * @return array|false|null
      * @throws \Exception
      */
     public static function getUser(string $email)
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $user = self::getUserEntry($ldap, $email, $dn, true);
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
 
         return $user;
     }
 
     /**
      * Update a domain in LDAP.
      *
      * @param \App\Domain $domain The domain to update.
      *
      * @throws \Exception
      */
     public static function updateDomain(Domain $domain): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $ldapDomain = $ldap->find_domain($domain->namespace);
 
         if (!$ldapDomain) {
             self::throwException(
                 $ldap,
                 "Failed to update domain {$domain->namespace} in LDAP (domain not found)"
             );
         }
 
         $oldEntry = $ldap->get_entry($ldapDomain['dn']);
         $newEntry = $oldEntry;
 
         self::setDomainAttributes($domain, $newEntry);
 
         if (array_key_exists('inetdomainstatus', $newEntry)) {
             $newEntry['inetdomainstatus'] = (string) $newEntry['inetdomainstatus'];
         }
 
         $result = $ldap->modify_entry($ldapDomain['dn'], $oldEntry, $newEntry);
 
         if (!is_array($result)) {
             self::throwException(
                 $ldap,
                 "Failed to update domain {$domain->namespace} in LDAP (" . __LINE__ . ")"
             );
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Update a group in LDAP.
      *
      * @param \App\Group $group The group to update
      *
      * @throws \Exception
      */
     public static function updateGroup(Group $group): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         list($cn, $domainName) = explode('@', $group->email);
 
         $domain = $group->domain();
 
         if (empty($domain)) {
             self::throwException(
                 $ldap,
                 "Failed to update group {$group->email} in LDAP (" . __LINE__ . ")"
             );
         }
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
 
         $domainBaseDN = "ou={$domain->namespace},{$hostedRootDN}";
 
         $groupBaseDN = "ou=Groups,{$domainBaseDN}";
 
         $dn = "cn={$cn},{$groupBaseDN}";
 
         $entry = [
             'cn' => $cn,
             'mail' => $group->email,
             'objectclass' => [
                 'top',
                 'groupofuniquenames',
                 'kolabgroupofuniquenames'
             ],
             'uniqueMember' => []
         ];
 
         $oldEntry = $ldap->get_entry($dn);
 
-        self::setGroupAttributes($group, $entry);
+        self::setGroupAttributes($ldap, $group, $entry);
 
         $result = $ldap->modify_entry($dn, $oldEntry, $entry);
 
         if (!is_array($result)) {
             self::throwException(
                 $ldap,
                 "Failed to update group {$group->email} in LDAP (" . __LINE__ . ")"
             );
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Update a user in LDAP.
      *
      * @param \App\User $user The user account to update.
      *
      * @throws \Exception
      */
     public static function updateUser(User $user): void
     {
         $config = self::getConfig('admin');
         $ldap = self::initLDAP($config);
 
         $newEntry = $oldEntry = self::getUserEntry($ldap, $user->email, $dn, true);
 
         if (!$oldEntry) {
             self::throwException(
                 $ldap,
                 "Failed to update user {$user->email} in LDAP (user not found)"
             );
         }
 
         self::setUserAttributes($user, $newEntry);
 
         if (array_key_exists('objectclass', $newEntry)) {
             if (!in_array('inetuser', $newEntry['objectclass'])) {
                 $newEntry['objectclass'][] = 'inetuser';
             }
         }
 
         if (array_key_exists('inetuserstatus', $newEntry)) {
             $newEntry['inetuserstatus'] = (string) $newEntry['inetuserstatus'];
         }
 
         if (array_key_exists('mailquota', $newEntry)) {
             $newEntry['mailquota'] = (string) $newEntry['mailquota'];
         }
 
         $result = $ldap->modify_entry($dn, $oldEntry, $newEntry);
 
         if (!is_array($result)) {
             self::throwException(
                 $ldap,
                 "Failed to update user {$user->email} in LDAP (" . __LINE__ . ")"
             );
         }
 
         if (empty(self::$ldap)) {
             $ldap->close();
         }
     }
 
     /**
      * Initialize connection to LDAP
      */
     private static function initLDAP(array $config, string $privilege = 'admin')
     {
         if (self::$ldap) {
             return self::$ldap;
         }
 
         $ldap = new \Net_LDAP3($config);
 
         $connected = $ldap->connect();
 
         if (!$connected) {
             throw new \Exception("Failed to connect to LDAP");
         }
 
         $bound = $ldap->bind(
             \config("ldap.{$privilege}.bind_dn"),
             \config("ldap.{$privilege}.bind_pw")
         );
 
         if (!$bound) {
             throw new \Exception("Failed to bind to LDAP");
         }
 
         return $ldap;
     }
 
     /**
      * Set domain attributes
      */
     private static function setDomainAttributes(Domain $domain, array &$entry)
     {
         $entry['inetdomainstatus'] = $domain->status;
     }
 
     /**
      * Convert group member addresses in to valid entries.
      */
-    private static function setGroupAttributes(Group $group, &$entry)
+    private static function setGroupAttributes($ldap, Group $group, &$entry)
     {
-        $config = self::getConfig('admin');
-        $ldap = self::initLDAP($config);
-
         $validMembers = [];
 
         $domain = $group->domain();
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
 
         $domainBaseDN = "ou={$domain->namespace},{$hostedRootDN}";
 
         foreach ($group->members as $member) {
             list($local, $domainName) = explode('@', $member);
 
             $memberDN = "uid={$member},ou=People,{$domainBaseDN}";
 
             // if the member is in the local domain but doesn't exist, drop it
             if ($domainName == $domain->namespace) {
                 if (!$ldap->get_entry($memberDN)) {
                     continue;
                 }
             }
 
             // add the member if not in the local domain
             if (!$ldap->get_entry($memberDN)) {
                 $memberEntry = [
                     'cn' => $member,
                     'mail' => $member,
                     'objectclass' => [
                         'top',
                         'inetorgperson',
                         'organizationalperson',
                         'person'
                     ],
                     'sn' => 'unknown'
                 ];
 
                 $ldap->add_entry($memberDN, $memberEntry);
             }
 
             $entry['uniquemember'][] = $memberDN;
             $validMembers[] = $member;
         }
 
         // Update members in sql (some might have been removed),
         // skip model events to not invoke another update job
         $group->members = $validMembers;
         Group::withoutEvents(function () use ($group) {
             $group->save();
         });
     }
 
     /**
      * Set common user attributes
      */
     private static function setUserAttributes(User $user, array &$entry)
     {
         $firstName = $user->getSetting('first_name');
         $lastName = $user->getSetting('last_name');
 
         $cn = "unknown";
         $displayname = "";
 
         if ($firstName) {
             if ($lastName) {
                 $cn = "{$firstName} {$lastName}";
                 $displayname = "{$lastName}, {$firstName}";
             } else {
                 $lastName = "unknown";
                 $cn = "{$firstName}";
                 $displayname = "{$firstName}";
             }
         } else {
             $firstName = "";
             if ($lastName) {
                 $cn = "{$lastName}";
                 $displayname = "{$lastName}";
             } else {
                 $lastName = "unknown";
             }
         }
 
         $entry['cn'] = $cn;
         $entry['displayname'] = $displayname;
         $entry['givenname'] = $firstName;
         $entry['sn'] = $lastName;
         $entry['userpassword'] = $user->password_ldap;
         $entry['inetuserstatus'] = $user->status;
         $entry['o'] = $user->getSetting('organization');
         $entry['mailquota'] = 0;
         $entry['alias'] = $user->aliases->pluck('alias')->toArray();
 
         $roles = [];
 
         foreach ($user->entitlements as $entitlement) {
             \Log::debug("Examining {$entitlement->sku->title}");
 
             switch ($entitlement->sku->title) {
                 case "mailbox":
                     break;
 
                 case "storage":
                     $entry['mailquota'] += 1048576;
                     break;
 
                 default:
                     $roles[] = $entitlement->sku->title;
                     break;
             }
         }
 
         $hostedRootDN = \config('ldap.hosted.root_dn');
 
         $entry['nsroledn'] = [];
 
         if (in_array("2fa", $roles)) {
             $entry['nsroledn'][] = "cn=2fa-user,{$hostedRootDN}";
         }
 
         if (in_array("activesync", $roles)) {
             $entry['nsroledn'][] = "cn=activesync-user,{$hostedRootDN}";
         }
 
         if (!in_array("groupware", $roles)) {
             $entry['nsroledn'][] = "cn=imap-user,{$hostedRootDN}";
         }
     }
 
     /**
      * Get LDAP configuration for specified access level
      */
     private static function getConfig(string $privilege)
     {
         $config = [
             'domain_base_dn' => \config('ldap.domain_base_dn'),
             'domain_filter' => \config('ldap.domain_filter'),
             'domain_name_attribute' => \config('ldap.domain_name_attribute'),
             'hosts' => \config('ldap.hosts'),
             'sort' => false,
             'vlv' => false,
             'log_hook' => 'App\Backends\LDAP::logHook',
         ];
 
         return $config;
     }
 
     /**
      * Get group entry from LDAP.
      *
      * @param \Net_LDAP3 $ldap  Ldap connection
      * @param string     $email Group email (mail)
      * @param string     $dn    Reference to group DN
      *
      * @return false|null|array Group entry, False on error, NULL if not found
      */
     private static function getGroupEntry($ldap, $email, &$dn = null)
     {
         list($_local, $_domain) = explode('@', $email, 2);
 
         $domain = $ldap->find_domain($_domain);
 
         if (!$domain) {
             return $domain;
         }
 
         $base_dn = $ldap->domain_root_dn($_domain);
         $dn = "cn={$_local},ou=Groups,{$base_dn}";
 
         $entry = $ldap->get_entry($dn);
 
         return $entry ?: null;
     }
 
     /**
      * Get user entry from LDAP.
      *
      * @param \Net_LDAP3 $ldap  Ldap connection
      * @param string     $email User email (uid)
      * @param string     $dn    Reference to user DN
      * @param bool       $full  Get extra attributes, e.g. nsroledn
      *
      * @return false|null|array User entry, False on error, NULL if not found
      */
     private static function getUserEntry($ldap, $email, &$dn = null, $full = false)
     {
         list($_local, $_domain) = explode('@', $email, 2);
 
         $domain = $ldap->find_domain($_domain);
 
         if (!$domain) {
             return $domain;
         }
 
         $base_dn = $ldap->domain_root_dn($_domain);
         $dn = "uid={$email},ou=People,{$base_dn}";
 
         $entry = $ldap->get_entry($dn);
 
         if ($entry && $full) {
             if (!array_key_exists('nsroledn', $entry)) {
                 $roles = $ldap->get_entry_attributes($dn, ['nsroledn']);
                 if (!empty($roles)) {
                     $entry['nsroledn'] = (array) $roles['nsroledn'];
                 }
             }
         }
 
         return $entry ?: null;
     }
 
     /**
      * Logging callback
      */
     public static function logHook($level, $msg): void
     {
         if (
             (
                 $level == LOG_INFO
                 || $level == LOG_DEBUG
                 || $level == LOG_NOTICE
             )
             && !\config('app.debug')
         ) {
             return;
         }
 
         switch ($level) {
             case LOG_CRIT:
                 $function = 'critical';
                 break;
             case LOG_EMERG:
                 $function = 'emergency';
                 break;
             case LOG_ERR:
                 $function = 'error';
                 break;
             case LOG_ALERT:
                 $function = 'alert';
                 break;
             case LOG_WARNING:
                 $function = 'warning';
                 break;
             case LOG_INFO:
                 $function = 'info';
                 break;
             case LOG_DEBUG:
                 $function = 'debug';
                 break;
             case LOG_NOTICE:
                 $function = 'notice';
                 break;
             default:
                 $function = 'info';
         }
 
         if (is_array($msg)) {
             $msg = implode("\n", $msg);
         }
 
         $msg = '[LDAP] ' . $msg;
 
         \Log::{$function}($msg);
     }
 
     /**
      * Throw exception and close the connection when needed
      *
      * @param \Net_LDAP3 $ldap    Ldap connection
      * @param string     $message Exception message
      *
      * @throws \Exception
      */
     private static function throwException($ldap, string $message): void
     {
         if (empty(self::$ldap) && !empty($ldap)) {
             $ldap->close();
         }
 
         throw new \Exception($message);
     }
 }