diff --git a/pkgs/by-name/st/stalwart-mail/package.nix b/pkgs/by-name/st/stalwart-mail/package.nix
index 77f48d5cadfe..0a9ed8b7d733 100644
--- a/pkgs/by-name/st/stalwart-mail/package.nix
+++ b/pkgs/by-name/st/stalwart-mail/package.nix
@@ -15,10 +15,11 @@
   rocksdb,
   callPackage,
   withFoundationdb ? false,
+  stalwartEnterprise ? false,
 }:
 
 rustPlatform.buildRustPackage rec {
-  pname = "stalwart-mail";
+  pname = "stalwart-mail" + (lib.optionalString stalwartEnterprise "-enterprise");
   version = "0.11.8";
 
   src = fetchFromGitHub {
@@ -46,15 +47,18 @@ rustPlatform.buildRustPackage rec {
 
   # Issue: https://github.com/stalwartlabs/mail-server/issues/1104
   buildNoDefaultFeatures = true;
-  buildFeatures = [
-    "sqlite"
-    "postgres"
-    "mysql"
-    "rocks"
-    "elastic"
-    "s3"
-    "redis"
-  ] ++ lib.optionals withFoundationdb [ "foundationdb" ];
+  buildFeatures =
+    [
+      "sqlite"
+      "postgres"
+      "mysql"
+      "rocks"
+      "elastic"
+      "s3"
+      "redis"
+    ]
+    ++ lib.optionals withFoundationdb [ "foundationdb" ]
+    ++ lib.optionals stalwartEnterprise [ "enterprise" ];
 
   env = {
     OPENSSL_NO_VENDOR = true;
@@ -154,7 +158,17 @@ rustPlatform.buildRustPackage rec {
     description = "Secure & Modern All-in-One Mail Server (IMAP, JMAP, SMTP)";
     homepage = "https://github.com/stalwartlabs/mail-server";
     changelog = "https://github.com/stalwartlabs/mail-server/blob/main/CHANGELOG.md";
-    license = lib.licenses.agpl3Only;
+    license =
+      [ lib.licenses.agpl3Only ]
+      ++ lib.optionals stalwartEnterprise [
+        {
+          fullName = "Stalwart Enterprise License 1.0 (SELv1) Agreement";
+          url = "https://github.com/stalwartlabs/mail-server/blob/main/LICENSES/LicenseRef-SEL.txt";
+          free = false;
+          redistributable = false;
+        }
+      ];
+
     maintainers = with lib.maintainers; [
       happysalada
       onny
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fd0d5c8acd75..b892b79f281e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10909,6 +10909,10 @@ with pkgs;
 
   stalwart-mail-webadmin = stalwart-mail.webadmin;
 
+  stalwart-mail-enterprise = stalwart-mail.override {
+    stalwartEnterprise = true;
+  };
+
   ruby-zoom = callPackage ../tools/text/ruby-zoom { };
 
   inherit (callPackages ../servers/monitoring/sensu-go { })