diff --git a/pkgs/tools/networking/ssmtp/default.nix b/pkgs/tools/networking/ssmtp/default.nix
index bdfcd3a1729c..cce44325316d 100644
--- a/pkgs/tools/networking/ssmtp/default.nix
+++ b/pkgs/tools/networking/ssmtp/default.nix
@@ -3,29 +3,27 @@
 assert tlsSupport -> openssl != null;
 
 stdenv.mkDerivation {
-  name = "ssmtp-2.61-12";
+  name = "ssmtp-2.64";
+  
   src = fetchurl {
-    url = http://ftp.debian.org/debian/pool/main/s/ssmtp/ssmtp_2.61.orig.tar.gz;
-    sha256 = "2151ad18cb73f9a254f796dde2b48be7318b45410b59fedbb258db5a41044fb5";
+    url = http://ftp.debian.org/debian/pool/main/s/ssmtp/ssmtp_2.64.orig.tar.bz2;
+    sha256 = "0dps8s87ag4g3jr6dk88hs9zl46h3790marc5c2qw7l71k4pvhr2";
   };
-  patches = [
-    (fetchurl {
-      url = http://ftp.debian.org/debian/pool/main/s/ssmtp/ssmtp_2.61-12.diff.gz;
-      sha256 = "2eb5b2af76d220f14e5133ec4078bab531209fb2f9f8f4e780a0ab8de4818d39";
-     })
-  ];
-  configureFlags = "${if tlsSupport then "--enable-ssl" else ""}";
-  postConfigure = "
-    sed -e '/INSTALLED_CONFIGURATION_FILE/d' \\
-        -e 's|\\(DSSMTPCONFDIR.*\\).(.*)\\(.*$\\)|\\1/etc/ssmtp\\2|' \\
-        -e 's|\\(DCONFIGURATION_FILE.*\\).(.*)\\(.*$\\)|\\1/etc/ssmtp/ssmtp.conf\\2|' \\
-        -e 's|\\(DREVALIASES_FILE.*\\).(.*)\\(.*$\\)|\\1/etc/ssmtp/revaliases\\2|' \\
-        -e \"s| /lib| $out/lib|\" -i Makefile
-    substituteInPlace ssmtp.c --replace gnutls/ openssl/ --replace openssl.h ssl.h
-    substituteInPlace Makefile --replace /usr/lib/libgnutls-openssl.so -lssl
-  ";
-  preInstall = "ensureDir $out/lib";
+
+  configureFlags = "--sysconfdir=/etc ${if tlsSupport then "--enable-ssl" else ""}";
+
+  postConfigure =
+    ''
+      # Don't run the script that interactively generates a config file.
+      # Also don't install the broken, cyclic symlink /lib/sendmail.
+      sed -e '/INSTALLED_CONFIGURATION_FILE/d' \
+          -e 's|/lib/sendmail|$(TMPDIR)/sendmail|' \
+          -i Makefile
+    '';
+
+  installFlags = "etcdir=$(out)/etc";
+
   installTargets = [ "install" "install-sendmail" ];
-  postInstall = "install ssmtp.conf $out/etc/ssmtp ";
+  
   buildInputs = stdenv.lib.optional tlsSupport openssl;
 }