Formatting

index.php

@@ -577,7 +577,7 @@ HTML;
 			if ( isset( $message["published"] ) ) {
 				$published = $message["published"];
 			} else {
-				$segments = explode("/", explode("-", $inbox_file ?? "")[0]);
+				$segments = explode( "/", explode( "-", $message_file ?? "" )[0]);
 				$published_hexstamp = end( $segments );
 				$published_time = hexdec( $published_hexstamp );
 				$published = date( "c", $published_time );