--- a/transports.conf	Wed May 07 11:54:17 2014 +0200
+++ b/transports.conf	Wed May 07 19:11:06 2014 +0200
@@ -1,8 +1,8 @@
 begin transports
 
     remote_smtp:
-	driver = smtp
+        driver = smtp
 
     local_mbox:
-	driver = appendfile
-	file = /var/mail/$local_part
+        driver = appendfile
+        file = /var/mail/$local_part