added new function

			throw new Exception("Username is already taken.");

		}

		if (!empty($recoveryEmail)) {

			$this->validateRecoveryEmail($recoveryEmail);

		}

		return $this->addNewUserToLDAP($displayname, $recoveryEmail, $username, $userEmail, $password);

	}

	/**

	 * Validates the recovery email address.

	 *

	 * @param string $recoveryEmail The recovery email address to be validated.

	 * @throws Exception If the recovery email address has an incorrect format, is already taken, or if the domain is disallowed.

	 * @return void

	 */

	public function validateRecoveryEmail(string $recoveryEmail): void {

		if (!$this->isValidEmailFormat($recoveryEmail)) {

			throw new Exception('Recovery email address has an incorrect format.');

		}

			throw new Exception('You cannot set an email address with a Murena domain as recovery email address.');

		}

	}

		return $this->addNewUserToLDAP($displayname, $recoveryEmail, $username, $userEmail, $password);

	}

	/**

	 * Add a new user to the LDAP directory.

	 *