diff --git a/cronwrap/cronwrap b/cronwrap/cronwrap
index 1264122..9a1276e 100755
--- a/cronwrap/cronwrap
+++ b/cronwrap/cronwrap
@@ -86,6 +86,8 @@ if ($status || $opt{v})
 			From => "\"cronwrap\@$hostname\" <postmaster\@molgen.mpg.de>",
 			To => \@to,
 			Subject => $subject,
+			'MIME-Version' => '1.0',
+			'Content-Type' => 'text/plain; charset=utf-8',
 		}
 	);