diff -urN exim-4.62.org/src/spam.c exim-4.62/src/spam.c
--- exim-4.62.org/src/spam.c	2006-04-28 12:32:23.000000000 +0200
+++ exim-4.62/src/spam.c	2006-06-08 10:20:26.000000000 +0200
@@ -147,7 +147,7 @@
                       AF_INET,
                       spamd_address_vector[current_server]->tcp_addr,
                       spamd_address_vector[current_server]->tcp_port,
-                      5 ) > -1) {
+                      15 ) > -1) {
         /* connection OK */
         break;
       };
--- exim-4.85/src/spam.h~	2015-01-06 00:40:11.000000000 +0100
+++ exim-4.85/src/spam.h	2015-07-10 14:04:36.437933012 +0200
@@ -10,7 +10,7 @@
 #ifdef WITH_CONTENT_SCAN
 
 /* timeout for reading and writing spamd */
-#define SPAMD_TIMEOUT 120
+#define SPAMD_TIMEOUT 240
 
 /* maximum length of the spam bar */
 #define MAX_SPAM_BAR_CHARS 50