diff --git a/pkgs/servers/mail/smtprelay/default.nix b/pkgs/servers/mail/smtprelay/default.nix
new file mode 100644
index 000000000000..8142dc76b98b
--- /dev/null
+++ b/pkgs/servers/mail/smtprelay/default.nix
@@ -0,0 +1,39 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+}:
+
+buildGoModule rec {
+  pname = "smtprelay";
+  version = "1.10.0";
+
+  src = fetchFromGitHub {
+    owner = "decke";
+    repo = "smtprelay";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-zZ3rgbo8nvrpFMtUmhyXnTgoVd0FIh1kWzuM2hCh5gY=";
+  };
+
+  vendorHash = "sha256-assGzM8/APNVVm2vZapPK6sh3tWNTnw6PSFwvEqNDPk=";
+
+  subPackages = [
+    "."
+  ];
+
+  CGO_ENABLED = 0;
+
+  # We do not supply the build time as the build wouldn't be reproducible otherwise.
+  ldflags = [
+    "-s"
+    "-w"
+    "-X=main.appVersion=v${version}"
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/decke/smtprelay";
+    description = "Simple Golang SMTP relay/proxy server";
+    changelog = "https://github.com/decke/smtprelay/releases/tag/v${version}";
+    license = licenses.mit;
+    maintainers = with maintainers; [ juliusrickert ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a0f111bcf7e3..0da437d7c088 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -26820,6 +26820,8 @@ with pkgs;
 
   quark = callPackage ../servers/http/quark { };
 
+  smtprelay = callPackage ../servers/mail/smtprelay { };
+
   soft-serve = callPackage ../servers/soft-serve { };
 
   sympa = callPackage ../servers/mail/sympa { };