diff -urN src.orig/include/spf.h src/include/spf.h
--- src.orig/include/spf.h	Mon Oct 13 20:22:46 2008
+++ src/include/spf.h	Wed Nov  5 08:43:14 2008
@@ -52,9 +52,9 @@
 /* ********************************************************************* */
 
 /* FYI only -- defaults can't be changed without recompiling the library */
-#define SPF_DEFAULT_MAX_DNS_MECH 10	/* DoS limit on SPF mechanisms	*/
+#define SPF_DEFAULT_MAX_DNS_MECH 64	/* DoS limit on SPF mechanisms	*/
 #define SPF_DEFAULT_MAX_DNS_PTR	 10	/* DoS limit on PTR records	*/
-#define SPF_DEFAULT_MAX_DNS_MX	 10	/* DoS limit on MX records	*/
+#define SPF_DEFAULT_MAX_DNS_MX	 64	/* DoS limit on MX records	*/
 #define SPF_DEFAULT_SANITIZE	  1
 #define SPF_DEFAULT_WHITELIST	  "include:spf.trusted-forwarder.org"
 #define SPF_EXP_MOD_NAME	"exp-text"
diff -urN src.orig/include/spf_internal.h src/include/spf_internal.h
--- src.orig/include/spf_internal.h	Sat Sep 27 23:20:11 2008
+++ src/include/spf_internal.h	Wed Nov  5 08:43:56 2008
@@ -58,7 +58,7 @@
  * your system caused by many DNS lookups, you might not even notice
  * that you are being used as part of a DDoS attack.
  */
-#define SPF_MAX_DNS_MECH 10
+#define SPF_MAX_DNS_MECH 64
 #endif
 #ifndef SPF_MAX_DNS_PTR
 /**
@@ -72,7 +72,7 @@
  * It is a bad idea to change this for the same reasons as mentioned
  * above for SPF_MAX_DNS_MECH
  */
-#define SPF_MAX_DNS_MX    10
+#define SPF_MAX_DNS_MX    64
 #endif
 
 #if 1
diff -urN src.orig/include/spf_server.h src/include/spf_server.h
--- src.orig/include/spf_server.h	Mon Sep 29 03:13:34 2008
+++ src/include/spf_server.h	Wed Nov  5 08:44:13 2008
@@ -37,7 +37,7 @@
  * your system caused by many DNS lookups, you might not even notice
  * that you are being used as part of a DDoS attack.
  */
-#define SPF_MAX_DNS_MECH 10
+#define SPF_MAX_DNS_MECH 64
 #endif
 #ifndef SPF_MAX_DNS_PTR
 /* It is a bad idea to change this for the same reasons as mentioned
@@ -49,7 +49,7 @@
 /* It is a bad idea to change this for the same reasons as mentioned
  * above for SPF_MAX_DNS_MECH
  */
-#define SPF_MAX_DNS_MX    10
+#define SPF_MAX_DNS_MX    64
 #endif
 
 struct SPF_server_struct {