diff --git a/lass/1systems/cloudkrebs.nix b/lass/1systems/cloudkrebs.nix
index 636d6a855..82c172050 100644
--- a/lass/1systems/cloudkrebs.nix
+++ b/lass/1systems/cloudkrebs.nix
@@ -9,6 +9,7 @@ in {
     ../.
     ../2configs/os-templates/CAC-CentOS-7-64bit.nix
     ../2configs/base.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/retiolum.nix
     ../2configs/git.nix
     ../2configs/realwallpaper.nix
diff --git a/lass/1systems/dishfire.nix b/lass/1systems/dishfire.nix
index 7043809a5..04ebca588 100644
--- a/lass/1systems/dishfire.nix
+++ b/lass/1systems/dishfire.nix
@@ -5,6 +5,7 @@
     ../.
     <nixpkgs/nixos/modules/profiles/qemu-guest.nix>
     ../2configs/base.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/git.nix
     ../2configs/websites/fritz.nix
     {
diff --git a/lass/1systems/echelon.nix b/lass/1systems/echelon.nix
index 80611ee80..e2fa1c5f4 100644
--- a/lass/1systems/echelon.nix
+++ b/lass/1systems/echelon.nix
@@ -9,6 +9,7 @@ in {
     ../.
     ../2configs/os-templates/CAC-CentOS-7-64bit.nix
     ../2configs/base.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/retiolum.nix
     ../2configs/realwallpaper-server.nix
     ../2configs/privoxy-retiolum.nix
diff --git a/lass/1systems/helios.nix b/lass/1systems/helios.nix
index cc98c2c5b..0c7c0d8e3 100644
--- a/lass/1systems/helios.nix
+++ b/lass/1systems/helios.nix
@@ -5,6 +5,7 @@ with builtins;
   imports = [
     ../.
     ../2configs/baseX.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/browsers.nix
     ../2configs/programs.nix
     ../2configs/git.nix
diff --git a/lass/1systems/mors.nix b/lass/1systems/mors.nix
index 0d8db212a..18f86ef91 100644
--- a/lass/1systems/mors.nix
+++ b/lass/1systems/mors.nix
@@ -4,6 +4,7 @@
   imports = [
     ../.
     ../2configs/baseX.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/programs.nix
     ../2configs/bitcoin.nix
     ../2configs/browsers.nix
diff --git a/lass/1systems/prism.nix b/lass/1systems/prism.nix
index 09a802b53..e1743c997 100644
--- a/lass/1systems/prism.nix
+++ b/lass/1systems/prism.nix
@@ -6,6 +6,7 @@ in {
   imports = [
     ../.
     ../2configs/base.nix
+    ../2configs/exim-smarthost.nix
     ../2configs/downloading.nix
     ../2configs/git.nix
     ../2configs/ts3.nix
diff --git a/lass/1systems/uriel.nix b/lass/1systems/uriel.nix
index 8bb2348e6..92996c181 100644
--- a/lass/1systems/uriel.nix
+++ b/lass/1systems/uriel.nix
@@ -5,6 +5,7 @@ with builtins;
   imports = [
     ../.
     ../2configs/baseX.nix
+    ../2configs/exim-retiolum.nix
     ../2configs/browsers.nix
     ../2configs/games.nix
     ../2configs/pass.nix