diff --git a/pkgs/servers/monitoring/prometheus/dovecot-exporter-deps.nix b/pkgs/servers/monitoring/prometheus/dovecot-exporter-deps.nix
new file mode 100644
index 000000000000..d19d595f0668
--- /dev/null
+++ b/pkgs/servers/monitoring/prometheus/dovecot-exporter-deps.nix
@@ -0,0 +1,93 @@
+# This file was generated by https://github.com/kamilchm/go2nix v1.2.1
+[
+  {
+    goPackagePath = "github.com/alecthomas/template";
+    fetch = {
+      type = "git";
+      url = "https://github.com/alecthomas/template";
+      rev = "a0175ee3bccc567396460bf5acd36800cb10c49c";
+      sha256 = "0qjgvvh26vk1cyfq9fadyhfgdj36f1iapbmr5xp6zqipldz8ffxj";
+    };
+  }
+  {
+    goPackagePath = "github.com/alecthomas/units";
+    fetch = {
+      type = "git";
+      url = "https://github.com/alecthomas/units";
+      rev = "2efee857e7cfd4f3d0138cc3cbb1b4966962b93a";
+      sha256 = "1j65b91qb9sbrml9cpabfrcf07wmgzzghrl7809hjjhrmbzri5bl";
+    };
+  }
+  {
+    goPackagePath = "github.com/beorn7/perks";
+    fetch = {
+      type = "git";
+      url = "https://github.com/beorn7/perks";
+      rev = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9";
+      sha256 = "1hrybsql68xw57brzj805xx2mghydpdiysv3gbhr7f5wlxj2514y";
+    };
+  }
+  {
+    goPackagePath = "github.com/golang/protobuf";
+    fetch = {
+      type = "git";
+      url = "https://github.com/golang/protobuf";
+      rev = "c65a0412e71e8b9b3bfd22925720d23c0f054237";
+      sha256 = "1ch3czyzq5abl6zm1l0dfsi09xj43ql9jcbmbhfhxz954pw03v3v";
+    };
+  }
+  {
+    goPackagePath = "github.com/matttproud/golang_protobuf_extensions";
+    fetch = {
+      type = "git";
+      url = "https://github.com/matttproud/golang_protobuf_extensions";
+      rev = "c12348ce28de40eed0136aa2b644d0ee0650e56c";
+      sha256 = "1d0c1isd2lk9pnfq2nk0aih356j30k3h1gi2w0ixsivi5csl7jya";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/client_golang";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/client_golang";
+      rev = "06bc6e01f4baf4ee783ffcd23abfcb0b0f9dfada";
+      sha256 = "0dvv21214sn702kc25y5l0gd9d11358976d3w31fgwx7456mjx26";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/client_model";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/client_model";
+      rev = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c";
+      sha256 = "19y4ywsivhpxj7ikf2j0gm9k3cmyw37qcbfi78n526jxcc7kw998";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/common";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/common";
+      rev = "89604d197083d4781071d3c65855d24ecfb0a563";
+      sha256 = "169rdlaf2mk9z4fydz7ajmngyhmf3q1lk96yhvx46bn986x5xkyn";
+    };
+  }
+  {
+    goPackagePath = "github.com/prometheus/procfs";
+    fetch = {
+      type = "git";
+      url = "https://github.com/prometheus/procfs";
+      rev = "cb4147076ac75738c9a7d279075a253c0cc5acbd";
+      sha256 = "0zhlrik0f9q1lj6cisgnxgbz4darbcix52hm5abi24l2ahchf5ca";
+    };
+  }
+  {
+    goPackagePath = "gopkg.in/alecthomas/kingpin.v2";
+    fetch = {
+      type = "git";
+      url = "https://gopkg.in/alecthomas/kingpin.v2";
+      rev = "947dcec5ba9c011838740e680966fd7087a71d0d";
+      sha256 = "0mndnv3hdngr3bxp7yxfd47cas4prv98sqw534mx7vp38gd88n5r";
+    };
+  }
+]
diff --git a/pkgs/servers/monitoring/prometheus/dovecot-exporter.nix b/pkgs/servers/monitoring/prometheus/dovecot-exporter.nix
new file mode 100644
index 000000000000..e7cdfa616b46
--- /dev/null
+++ b/pkgs/servers/monitoring/prometheus/dovecot-exporter.nix
@@ -0,0 +1,25 @@
+{ stdenv, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  name = "dovecot_exporter-unstable-${version}";
+  version = "2018-01-18";
+  rev = "4e831356533e2321031df73ebd25dd55dbd8d385";
+
+  goPackagePath = "github.com/kumina/dovecot_exporter";
+
+  src = fetchFromGitHub {
+    owner = "kumina";
+    repo = "dovecot_exporter";
+    inherit rev;
+    sha256 = "0iky1i7m5mlknkhlpsxpjgigssg5m02nx5y7i4biddkqilfic74n";
+  };
+
+  goDeps = ./dovecot-exporter-deps.nix;
+
+  meta = with stdenv.lib; {
+    inherit (src.meta) homepage;
+    description = "Prometheus metrics exporter for Dovecot";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ willibutz ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 34890e3008b9..016c52588a8b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12247,6 +12247,7 @@ with pkgs;
   prometheus-blackbox-exporter = callPackage ../servers/monitoring/prometheus/blackbox-exporter.nix { };
   prometheus-collectd-exporter = callPackage ../servers/monitoring/prometheus/collectd-exporter.nix { };
   prometheus-consul-exporter = callPackage ../servers/monitoring/prometheus/consul-exporter.nix { };
+  prometheus-dovecot-exporter = callPackage ../servers/monitoring/prometheus/dovecot-exporter.nix { };
   prometheus-fritzbox-exporter = callPackage ../servers/monitoring/prometheus/fritzbox-exporter.nix { };
   prometheus-haproxy-exporter = callPackage ../servers/monitoring/prometheus/haproxy-exporter.nix { };
   prometheus-json-exporter = callPackage ../servers/monitoring/prometheus/json-exporter.nix { };