diff --git a/krebs/5pkgs/exim.nix b/krebs/5pkgs/exim.nix
deleted file mode 100644
index 4bb69267c..000000000
--- a/krebs/5pkgs/exim.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-diff --git a/pkgs/servers/mail/exim/default.nix b/pkgs/servers/mail/exim/default.nix
-index 0918e30..5b7a587 100644
---- a/pkgs/servers/mail/exim/default.nix
-+++ b/pkgs/servers/mail/exim/default.nix
-@@ -1,11 +1,11 @@
- { coreutils, fetchurl, db, openssl, pcre, perl, pkgconfig, stdenv }:
- 
- stdenv.mkDerivation rec {
--  name = "exim-4.87";
-+  name = "exim-4.88";
- 
-   src = fetchurl {
--    url = "http://mirror.switch.ch/ftp/mirror/exim/exim/exim4/${name}.tar.bz2";
--    sha256 = "1jbxn13shq90kpn0s73qpjnx5xm8jrpwhcwwgqw5s6sdzw6iwsbl";
-+    url = "ftp://ftp.exim.org/pub/exim/exim4/${name}.tar.bz2";
-+    sha256 = "0bca3wb45hl7h8m8bpvsmrmqa07jhbhqyigs9pl29hhzwgbmz78i";
-   };
- 
-   buildInputs = [ coreutils db openssl pcre perl pkgconfig ];