diff --git a/scripts/resend_activation_email.php b/scripts/resend_activation_email.php
new file mode 100644
index 0000000..ec7d55f
--- /dev/null
+++ b/scripts/resend_activation_email.php
@@ -0,0 +1,65 @@
+<?php
+/**
+ * Resend activation email which contains the user activation.
+ *
+ * Usage:
+ * $ php resend_activation_email.php USER_ID
+ *
+ **/
+set_include_path("../includes/");
+set_include_path("../inside/");
+require_once("functions.php");
+require_once("User.php");
+set_include_path("../includes/");
+require_once("DB.php");
+
+require_once("../snapporder/config.php");
+require_once("../snapporder/lib/functions.php");
+
+
+/* Connect to database */
+$options = array( 'debug' => 2, 'portability' => DB_PORTABILITY_ALL );
+$conn = DB::connect(getDSN(), $options);
+if(DB :: isError($conn)) {
+    echo $conn->toString();
+    set_response_code(500);
+    echo $crypt->json_encode_and_encrypt(array('error' => 'Could not connect to DB'));
+    die();
+}
+$conn->setFetchMode(DB_FETCHMODE_ASSOC);
+
+if( !defined("CLI_SERVER_NAME") || !defined('CLI_SCHEME')) {
+    echo "CLI_SERVER_NAME or CLI_SCHEME is not configured. Check snapporder/config.php\n";
+    die(1);
+}
+if(PHP_SAPI !== 'cli') {
+    echo "Not allowed. Run this on the command line.\n";
+    die(1);
+}
+if($argc < 2) {
+    echo "Invalid number of arguments.\n";
+    die(1);
+}
+if( !is_numeric($argv[1]) ) {
+    echo "User ID is not a number.\n";
+    die(1);
+}
+
+$user = get_user($argv[1]);
+if( $user == NULL ) {
+    echo "User with user ID $argv[1] not found.\n";
+    die(1);
+}
+
+/* Add register url */
+if($user['registration_status'] !== "partial") {
+    echo "User ".$user['memberid']." has invalid registration status '".$user['registration_status']."' (not partial).\n";
+    die(1);
+}
+$server_name = CLI_SERVER_NAME;
+$scheme = CLI_SCHEME;
+$user['registration_url'] = generate_registration_url($user, SECRET_KEY);
+
+/* Send email */
+send_activation_email(array(), $user);
+echo "Email sent to ". $user['email'].".\n";
diff --git a/snapporder/config-sample.php b/snapporder/config-sample.php
index 3e5a3f8..a0340c3 100644
--- a/snapporder/config-sample.php
+++ b/snapporder/config-sample.php
@@ -6,4 +6,8 @@
     define("MAILCHIMP_API_KEY", "");
     define("MAILCHIMP_LIST_ID", "004f53d7c6");
     define("TEKSTMELDING_API_KEY", 'qwertyuiop');
+
+    /* Used in scripts (resend activation email) */
+    define("CLI_SERVER_NAME", 'inside.dev');
+    define('CLI_SCHEME', 'http');
 ?>
diff --git a/snapporder/lib/functions.php b/snapporder/lib/functions.php
index c522088..e0d7024 100644
--- a/snapporder/lib/functions.php
+++ b/snapporder/lib/functions.php
@@ -326,10 +326,14 @@ function check_token($user, $token, $secret_key) {
 
     return true;
 }
-function generate_registration_url($user, $secret_key) {
+function generate_registration_url($user, $secret_key, $server_name=NULL, $scheme=NULL) {
     $token = create_token($user, $secret_key);
-    $server_name = isset($_SERVER['HTTP_X_FORWARDED_SERVER']) ? $_SERVER['HTTP_X_FORWARDED_SERVER'] : $_SERVER['SERVER_NAME'];
-    $scheme ="http".((empty($_SERVER['HTTPS']) or $_SERVER['HTTPS'] == 'off')?'':'s');
+    if($server_name == NULL) {
+        $server_name = isset($_SERVER['HTTP_X_FORWARDED_SERVER']) ? $_SERVER['HTTP_X_FORWARDED_SERVER'] : $_SERVER['SERVER_NAME'];
+    }
+    if($scheme == NULL) {
+        $scheme = "http" . ((empty($_SERVER['HTTPS']) or $_SERVER['HTTPS'] == 'off') ? '' : 's');
+    }
     $url = "$scheme://".$server_name."/snapporder/activate.php?userid=".$user['memberid']."&token=$token";
 
     return $url;