diff --git a/ircd/m.cc b/ircd/m.cc
index 7782295a0..5e36acd9a 100644
--- a/ircd/m.cc
+++ b/ircd/m.cc
@@ -291,6 +291,7 @@ ircd::m::module_names
 	"client_pushers",
 	"client_pushrules",
 	"client_register_available",
+	"client_register_email",
 	"client_register",
 	"client_rooms",
 	"client_search",
diff --git a/modules/Makefile.am b/modules/Makefile.am
index 7aa309510..c24f8d903 100644
--- a/modules/Makefile.am
+++ b/modules/Makefile.am
@@ -214,6 +214,7 @@ client_client_capabilities_la_SOURCES = client/capabilities.cc
 client_client_send_to_device_la_SOURCES = client/send_to_device.cc
 client_client_delete_devices_la_SOURCES = client/delete_devices.cc
 client_client_notifications_la_SOURCES = client/notifications.cc
+client_client_register_email_la_SOURCES = client/register_email.cc
 
 client_module_LTLIBRARIES = \
 	client/client_versions.la \
@@ -239,6 +240,7 @@ client_module_LTLIBRARIES = \
 	client/client_send_to_device.la \
 	client/client_delete_devices.la \
 	client/client_notifications.la \
+	client/client_register_email.la \
 	###
 
 #
diff --git a/modules/client/register_email.cc b/modules/client/register_email.cc
new file mode 100644
index 000000000..1240b5f6e
--- /dev/null
+++ b/modules/client/register_email.cc
@@ -0,0 +1,131 @@
+// Matrix Construct
+//
+// Copyright (C) Matrix Construct Developers, Authors & Contributors
+// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice is present in all copies. The
+// full license for this software is available in the LICENSE file.
+
+namespace ircd::m::register_email
+{
+	extern const string_view description;
+	extern mods::import<ircd::conf::item<bool>> register_user_enable;
+	extern mods::import<ircd::conf::item<bool>> register_enable;
+}
+
+namespace ircd::m::register_email::requesttoken
+{
+	static resource::response post(client &c, const resource::request &);
+
+	extern resource::method method_post;
+	extern resource _resource;
+}
+
+ircd::mapi::header
+IRCD_MODULE
+{
+	"Client 3.4.1 :Register Available"
+};
+
+decltype(ircd::m::register_email::description)
+ircd::m::register_email::description
+{R"(
+	(5.5.2) The homeserver must check that the given email address is
+	not already associated with an account on this homeserver. The
+	homeserver has the choice of validating the email address itself,
+	or proxying the request to the /validate/email/requestToken Identity
+	Service API. The request should be proxied to the domain that is sent
+	by the client in the id_server. It is imperative that the homeserver
+	keep a list of trusted Identity Servers and only proxies to those it
+	trusts.
+)"};
+
+decltype(ircd::m::register_email::requesttoken::_resource)
+ircd::m::register_email::requesttoken::_resource
+{
+	"/_matrix/client/r0/register/email/requestToken",
+	{
+		description
+	}
+};
+
+decltype(ircd::m::register_email::requesttoken::method_post)
+ircd::m::register_email::requesttoken::method_post
+{
+	_resource, "POST", post
+};
+
+decltype(ircd::m::register_email::register_enable)
+ircd::m::register_email::register_enable
+{
+	"client_register", "register_enable"
+};
+
+decltype(ircd::m::register_email::register_user_enable)
+ircd::m::register_email::register_user_enable
+{
+	"client_register", "register_user_enable"
+};
+
+ircd::resource::response
+ircd::m::register_email::requesttoken::post(client &client,
+                                            const resource::request &request)
+{
+	// can't throw or Riot infinite loops hitting the server.
+	if((0) && (!bool(register_enable) || !bool(register_user_enable)))
+		throw m::error
+		{
+			http::OK, "M_REGISTRATION_DISABLED",
+			"Registration is disabled. Nothing to email you."
+		};
+
+	const json::string &client_secret
+	{
+		request.at("client_secret")
+	};
+
+	const json::string &email
+	{
+		request.at("email")
+	};
+
+	const ushort send_attempt
+	{
+		request.at<ushort>("send_attempt")
+	};
+
+	const json::string &next_link
+	{
+		request["next_link"]
+	};
+
+	const json::string &id_server
+	{
+		request.at("id_server")
+	};
+
+	log::debug
+	{
+		m::log, "Verification email to [%s] attempt:%u idserv[%s]  next_link[%s]",
+		email,
+		send_attempt,
+		id_server,
+		next_link,
+	};
+
+	char sidbuf[256];
+	const string_view sid
+	{
+
+	};
+
+	return resource::response
+	{
+		client, json::members
+		{
+			{ "sid", sid }
+		}
+	};
+}