diff --git a/src/Mail/Message.php b/src/Mail/Message.php
index e763f591..fc1f21cb 100644
--- a/src/Mail/Message.php
+++ b/src/Mail/Message.php
@@ -297,10 +297,7 @@ private function createAttachment(string $file, string $content = null, string $
 	{
 		$part = new MimePart;
 		if ($content === null) {
-			$content = @file_get_contents($file); // @ is escalated to exception
-			if ($content === false) {
-				throw new Nette\FileNotFoundException("Unable to read file '$file'.");
-			}
+			$content = Nette\Utils\FileSystem::read($file);
 		}
 		if (!$contentType) {
 			$contentType = finfo_buffer(finfo_open(FILEINFO_MIME_TYPE), $content);