--- Mail-SPF-2.007.ebuild       2010-07-06 17:05:42.000000000 -0400
+++ Mail-SPF-2.007-r1.ebuild    2010-07-12 20:14:21.000000000 -0400
@@ -25,7 +25,8 @@
        >=dev-perl/NetAddr-IP-4.026
        >=dev-perl/Net-DNS-Resolver-Programmable-0.003
        virtual/perl-version
-       !dev-perl/Mail-SPF-Query"
+       !dev-perl/Mail-SPF-Query
+       !mail-filter/libspf2"

 DEPEND="${RDEPEND}
                >=virtual/perl-Module-Build-0.33"