diff -ruN libspf2-1.2.5/src/include/spf.h libspf2-1.2.5.patched/src/include/spf.h
--- libspf2-1.2.5/src/include/spf.h	2005-02-17 01:56:55.000000000 +0100
+++ libspf2-1.2.5.patched/src/include/spf.h	2007-03-14 16:58:21.000000000 +0100
@@ -52,8 +52,8 @@
 
 /* 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_PTR	  5	/* DoS limit on PTR records	*/
-#define SPF_DEFAULT_MAX_DNS_MX	  5	/* DoS limit on MX records	*/
+#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_SANITIZE	  1
 #define SPF_DEFAULT_WHITELIST	  "include:spf.trusted-forwarder.org"
 #define SPF_EXP_MOD_NAME	"exp-text"
diff -ruN libspf2-1.2.5/src/include/spf_internal.h libspf2-1.2.5.patched/src/include/spf_internal.h
--- libspf2-1.2.5/src/include/spf_internal.h	2005-02-24 05:10:49.000000000 +0100
+++ libspf2-1.2.5.patched/src/include/spf_internal.h	2007-03-14 16:58:04.000000000 +0100
@@ -57,13 +57,13 @@
 /* It is a bad idea to change this for the same reasons as mentioned
  * above for SPF_MAX_DNS_MECH
  */
-#define SPF_MAX_DNS_PTR   5
+#define SPF_MAX_DNS_PTR   10
 #endif
 #ifndef SPF_MAX_DNS_MX
 /* 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    5
+#define SPF_MAX_DNS_MX    10
 #endif
 
 #if 1
diff -ruN libspf2-1.2.5/src/include/spf_server.h libspf2-1.2.5.patched/src/include/spf_server.h
--- libspf2-1.2.5/src/include/spf_server.h	2004-09-29 12:33:09.000000000 +0200
+++ libspf2-1.2.5.patched/src/include/spf_server.h	2007-03-14 16:58:54.000000000 +0100
@@ -44,13 +44,13 @@
 /* It is a bad idea to change this for the same reasons as mentioned
  * above for SPF_MAX_DNS_MECH
  */
-#define SPF_MAX_DNS_PTR   5
+#define SPF_MAX_DNS_PTR   10
 #endif
 #ifndef SPF_MAX_DNS_MX
 /* 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    5
+#define SPF_MAX_DNS_MX    10
 #endif
 
 struct SPF_server_struct {