public function send( $mail ) {
		/**
		 * @param string $to
		 * @param string $subject
		 * @param string $body
		 * @param array $headers
		 * @param array $attachments
		 * @param array $is_html
		 */
		$to          = $mail['to'];
		$subject     = $mail['subject'];
		$body        = $mail['body'];
		$headers     = $mail['headers'];
		$attachments = $mail['attachment'];
		$is_html     = $mail['is_html'];
		$error       = Automator()->error;
		if ( $to ) {
			if ( is_array( $to ) ) {
				foreach ( $to as $tt ) {
					if ( empty( $tt ) || ! is_email( $tt ) ) {
						if ( ! $error->get_message( 'wp_mail_to' ) ) {
							$error->add_error( 'wp_mail_to', esc_attr__( 'To address is empty.', 'uncanny-automator' ), $mail );
						}
					}
				}
			} elseif ( empty( $to ) || ! is_email( $to ) ) {
				if ( ! $error->get_message( 'wp_mail_to' ) ) {
					$error->add_error( 'wp_mail_to', esc_attr__( 'To address is empty.', 'uncanny-automator' ), $mail );
				}
			}
		}
		if ( empty( $headers ) ) {
			$headers = array();
		}

//		if ( empty( $subject ) ) {
//			$error->add_error( 'subject_empty', esc_attr__( 'Email subject is empty.', 'uncanny-automator' ), $mail );
//		}
//
//		if ( empty( $body ) ) {
//			$error->add_error( 'body_empty', esc_attr__( 'Email body is empty.', 'uncanny-automator' ), $mail );
//		}

		if ( empty( $attachments ) ) {
			$attachments = array();
		}

		if ( ! empty( $error->get_messages() ) ) {
			return $error;
		}

		return wp_mail( $to, $subject, $body, $headers, $attachments );
	}