diff --git a/config.sample.php b/config.sample.php
index 69252d1..b3fe96f 100644
--- a/config.sample.php
+++ b/config.sample.php
@@ -1,8 +1,17 @@
 <?php
-$homeserver = "example.com";
-$access_token = "To be used for sending the registration notification";
-$register_room = '$registerRoomID:example.com';
+$config = [
+    "homeserver" => "example.com",
+    "access_token" => "To be used for sending the registration notification",
 
-$webroot="https://myregisterdomain.net/";
-$howToURL = "https://my-url-for-storing-howTos.net";
+    // Which e-mail-adresse shall the bot use to send e-mails?
+    "register_email" => 'register_bot@example.com',
+    // Where should the bot post registration requests to?
+    "register_room" => '$registerRoomID:example.com',
+
+    // Where is the public part of the bot located? make sure you have a / at the end
+    "webroot" => "https://myregisterdomain.net/",
+
+    // optional: Do you have a place where howTo's are located? If not leave this value out
+    "howToURL" => "https://my-url-for-storing-howTos.net",
+]
 ?>
diff --git a/cron.php b/cron.php
index 384ce0f..1d3e5f4 100644
--- a/cron.php
+++ b/cron.php
@@ -20,9 +20,9 @@ foreach ($mx_db->query($sql) as $row) {
 	try {
 		switch ($state) {
 			case RegisterState::PendingEmailSend:
-				$verify_url = $webroot . "/verify.php?t=" . $row["verify_token"];
+				$verify_url = $config["webroot"] . "/verify.php?t=" . $row["verify_token"];
 				$success = send_mail_pending_verification(
-						$homeserver,
+						$config["homeserver"],
 						$row["first_name"] . " " . $row["last_name"],
 						$row["email"],
 						$row["verify_url"]);
@@ -35,8 +35,8 @@ foreach ($mx_db->query($sql) as $row) {
 				break;
 			case RegisterState::PendingAdminSend:
 				require_once("MatrixConnection.php");
-				$adminUrl = $webroot . "/verify_admin.php?t=" . $row["admin_token"];
-				$mxConn = new MatrixConnection($homeserver, $access_token);
+				$adminUrl = $config["webroot"] . "/verify_admin.php?t=" . $row["admin_token"];
+				$mxConn = new MatrixConnection($config["homeserver"], $config["access_token"]);
 				$mxMsg = new MatrixMessage();
 				$mxMsg->set_body($first_name . ' ' . $last_name . " möchte sich registrieren und hat folgende Notiz hinterlassen:\r\n"
 						. $row["note"] . "\r\n"
@@ -45,12 +45,12 @@ foreach ($mx_db->query($sql) as $row) {
 						. $row["note"] . "<br />"
 						. "Zum Bearbeiten <a href=\"". $adminUrl . "\">hier</a> klicken");
 				$mxMsg->set_type("m.text");
-				$response = $mxConn->send($register_room, $mxMsg);
+				$response = $mxConn->send($config["register_room"], $mxMsg);
 
 				if ($response) {
 					$mx_db->setRegistrationStateById(RegisterState::PendingAdminVerify, $row["id"]);
 
-					send_mail_pending_approval($homeserver, $first_name . " " . $last_name, $email);
+					send_mail_pending_approval($config["homeserver"], $first_name . " " . $last_name, $email);
 				} else {
 					throw new Exception("Could not send notification for ".$row["first_name"]." ".$row["last_name"]."(".$row["id"].") to admins.");
 				}
@@ -61,18 +61,18 @@ foreach ($mx_db->query($sql) as $row) {
 				$password = addUser($row["first_name"], $row["last_name"], $row["username"], $row["email"]);
 				if ($password != NULL) {
 					// send registration_success
-					$res = send_mail_registration_success($homeserver, $first_name . " " . $last_name, $email, $username, $password, $howToURL);
+					$res = send_mail_registration_success($config["homeserver"], $first_name . " " . $last_name, $email, $username, $password, $config["howToURL"]);
 					if ($res) {
 						$mx_db->setRegistrationStateById(RegisterState::AllDone, $row["id"]);
 					} else {
 						$mx_db->setRegistrationStateById(RegisterState::PendingSendRegistrationMail, $row["id"]);
 					}
 				} else {
-					send_mail_registration_allowed_but_failed($homeserver, $first_name . " " . $last_name, $email);
+					send_mail_registration_allowed_but_failed($config["homeserver"], $first_name . " " . $last_name, $email);
 					$mxMsg = new MatrixMessage();
 					$mxMsg->set_type("m.text");
 					$mxMsg->set_body("Fehler beim Registrieren von " . $first_name . " " . $last_name . ".");
-					$mxConn->send($register_room, $mxMsg);
+					$mxConn->send($config["register_room"], $mxMsg);
 					throw new Exception($language["REGISTRATION_FAILED"]);
 				}
 				break;
diff --git a/public/index.php b/public/index.php
index eda0435..1379f21 100644
--- a/public/index.php
+++ b/public/index.php
@@ -60,10 +60,10 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
 		}
 		$verify_token = $res["verify_token"];
 
-		$verify_url = $webroot . "/verify.php?t=" . $verify_token;
+		$verify_url = $config["webroot"] . "/verify.php?t=" . $verify_token;
 		require_once "../mail_templates.php";
 		$success = send_mail_pending_verification(
-			$homeserver,
+			$config["homeserver"],
 			$first_name . " " . $last_name,
 			$email,
 			$verify_url);
@@ -82,12 +82,12 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
 		print("</head><body>");
 		print("<h1>" . $language["REGISTRATION_REQUEST_FAILED"] . "</h1>");
 		print("<p>" . $e->getMessage() . "</p>");
-		print("<a href=\"" . $webroot . "/register.php" . "\">Zur Registrierungsseite</a>");
+		print("<a href=\"" . $config["webroot"] . "/register.php" . "\">Zur Registrierungsseite</a>");
 	}
 } else {
 	$_SESSION["token"] = bin2hex(random_bytes(16));
 ?>
-		<title>Registriere dich für <?php echo $homeserver; ?></title>
+		<title>Registriere dich für <?php echo $config["homeserver"]; ?></title>
 		<link href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet">
 		<style>
 body{
@@ -111,7 +111,7 @@ body{
 				<div class="col-xs-12 col-sm-8 col-md-4 col-sm-offset-2 col-md-offset-4">
 					<div class="panel panel-default">
 						<div class="panel-heading">
-							<h3 class="panel-title">Bitte für <?php echo $homeserver; ?> registrieren<small>2-Schritt-Registrierung</small></h3>
+							<h3 class="panel-title">Bitte für <?php echo $config["homeserver"]; ?> registrieren<small>2-Schritt-Registrierung</small></h3>
 						</div>
 						<div class="panel-body">
 							<form name="regForm" role="form" action="register.php" method="post">
diff --git a/public/verify.php b/public/verify.php
index b00a7cc..47cb34e 100644
--- a/public/verify.php
+++ b/public/verify.php
@@ -39,8 +39,8 @@ try {
 	$admin_token = $user["admin_token"];
 
 	require_once("../MatrixConnection.php");
-	$adminUrl = $webroot . "/verify_admin.php?t=" . $admin_token;
-	$mxConn = new MatrixConnection($homeserver, $access_token);
+	$adminUrl = $config["webroot"] . "/verify_admin.php?t=" . $admin_token;
+	$mxConn = new MatrixConnection($config["homeserver"], $config["access_token"]);
 	$mxMsg = new MatrixMessage();
 	$mxMsg->set_body($first_name . ' ' . $last_name . "möchte sich registrieren und hat folgende Notiz hinterlassen:\r\n"
 		. $note . "\r\n"
@@ -49,7 +49,7 @@ try {
 		. $note . "<br />"
 		. "Zum Bearbeiten <a href=\"". $adminUrl . "\">hier</a> klicken");
 	$mxMsg->set_type("m.text");
-	$response = $mxConn->send($register_room, $mxMsg);
+	$response = $mxConn->send($config["register_room"], $mxMsg);
 
 	if ($response) {
 		$message = $language["SEND_MATRIX_FAIL"];
@@ -58,19 +58,19 @@ try {
 		($response ? RegisterState::PendingAdminVerify : RegisterState::PendingAdminSend),
 		$token);
 
-	send_mail_pending_approval($homeserver, $first_name . " " . $last_name, $email);
+	send_mail_pending_approval($config["homeserver"], $first_name . " " . $last_name, $email);
 
 	print("<title>" . $language["VERIFICATION_SUCEEDED"] . "</title>");
 	print("</head><body>");
 	print("<h1>" . $language["VERIFICATION_SUCEEDED"] . "</h1>");
 	print("<p>" . $language["VERIFICATION_SUCCESS_BODY"] . "</p>");
-	print("<a href=\"" . $webroot . "/register.php" . "\">Zur Registrierungsseite</a>");
+	print("<a href=\"" . $config["webroot"] . "/register.php" . "\">Zur Registrierungsseite</a>");
 } catch (Exception $e) {
 	print("<title>" . $language["VERIFICATION_FAILED"] . "</title>");
 	print("</head><body>");
 	print("<h1>" . $language["VERIFICATION_FAILED"] . "</h1>");
 	print("<p>" . $e->getMessage() . "</p>");
-	print("<a href=\"" . $webroot . "/register.php" . "\">Zur Registrierungsseite</a>");
+	print("<a href=\"" . $config["webroot"] . "/register.php" . "\">Zur Registrierungsseite</a>");
 }
 ?>
 	</body>
diff --git a/public/verify_admin.php b/public/verify_admin.php
index eadec3a..b1d09ad 100644
--- a/public/verify_admin.php
+++ b/public/verify_admin.php
@@ -56,24 +56,24 @@ try {
 
 		// register user
 		require_once("../MatrixConnection.php");
-		$mxConn = new MatrixConnection($homeserver, $access_token);
+		$mxConn = new MatrixConnection($config["homeserver"], $config["access_token"]);
 
 		// generate a password with 8 characters
 		$password = addUser($first_name, $last_name, $username, $email);
 		if ($password != NULL) {
 			// send registration_success
-			$res = send_mail_registration_success($homeserver, $first_name . " " . $last_name, $email, $username, $password, $howToURL);
+			$res = send_mail_registration_success($config["homeserver"], $first_name . " " . $last_name, $email, $username, $password, $config["howToURL"]);
 			if ($res) {
 				$mx_db->setRegistrationStateAdmin(RegisterState::AllDone, $token);
 			} else {
 				$mx_db->setRegistrationStateAdmin(RegisterState::PendingSendRegistrationMail, $token);
 			}
 		} else {
-			send_mail_registration_allowed_but_failed($homeserver, $first_name . " " . $last_name, $email);
+			send_mail_registration_allowed_but_failed($config["homeserver"], $first_name . " " . $last_name, $email);
 			$mxMsg = new MatrixMessage();
 			$mxMsg->set_type("m.text");
 			$mxMsg->set_body("Fehler beim Registrieren von " . $first_name . " " . $last_name . ".");
-			$mxConn->send($register_room, $mxMsg);
+			$mxConn->send($config["register_room"], $mxMsg);
 			throw new Exception($language["REGISTRATION_FAILED"]);
 		}
 
@@ -83,7 +83,7 @@ try {
 		print("<p>" . $language["ADMIN_REGISTER_ACCEPTED_BODY"] . "</p>");
 	} elseif ($action == RegisterState::RegistrationDeclined) {
 		$mx_db->setRegistrationStateAdmin(RegisterState::RegistrationDeclined, $token);
-		send_mail_registration_decline($homeserver, $first_name . " " . $last_name, $email, $decline_reason);
+		send_mail_registration_decline($config["homeserver"], $first_name . " " . $last_name, $email, $decline_reason);
 		print("<title>" . $language["ADMIN_VERIFY_SITE_TITLE"] . "</title>");
 		print("</head><body>");
 		print("<h1>" . $language["ADMIN_VERIFY_SITE_TITLE"] . "</h1>");
@@ -161,7 +161,7 @@ background: rgba(255, 255, 255, 0.8);
 	print("</head><body>");
 	print("<h1>" . $language["REGISTRATION_FAILED"] . "</h1>");
 	print("<p>" . $e->getMessage() . "</p>");
-	print("<a href=\"" . $webroot . "/register.php" . "\">Zur Registrierungsseite</a>");
+	print("<a href=\"" . $config["webroot"] . "/register.php" . "\">Zur Registrierungsseite</a>");
 }
 ?>
 </body>