postfix: Correct license

lib/licenses.nix

@@ -200,6 +200,11 @@ lib.mapAttrs (n: v: v // { shortName = n; }) rec {
     fullName = "Eclipse Public License 1.0";
   };
 
+  epl20 = spdx {
+    spdxId = "EPL-2.0";
+    fullName = "Eclipse Public License 2.0";
+  };
+
   epson = {
     fullName = "Seiko Epson Corporation Software License Agreement for Linux";
     url = https://download.ebz.epson.net/dsc/du/02/eula/global/LINUX_EN.html;

pkgs/servers/mail/postfix/default.nix

@@ -90,7 +90,7 @@ in stdenv.mkDerivation rec {
   meta = {
     homepage = http://www.postfix.org/;
     description = "A fast, easy to administer, and secure mail server";
-    license = lib.licenses.bsdOriginal;
+    license = with lib.licenses; [ ipl10 epl20 ];
     platforms = lib.platforms.linux;
     maintainers = [ lib.maintainers.rickynils ];
   };