diff -ur ../mimemail.orig/mimemail.inc mimemail/mimemail.inc
--- ../mimemail.orig/mimemail.inc	2010-03-24 22:36:41.000000000 +0100
+++ mimemail/mimemail.inc	2010-04-08 09:19:42.000000000 +0200
@@ -505,6 +505,9 @@
   global $base_url;
   $url = urldecode($url);
 
+  if (strpos($url, "file://") === 0)
+    return substr($url, 7); 
+    
   // If the URL is absolute or a mailto, return it as-is.
   if (strpos($url, '://') || preg_match('!mailto:!', $url)) {
     $url = str_replace(' ', '%20', $url);