diff --git a/app/helpers/user_to_project_notification.py b/app/helpers/user_to_project_notification.py
index 964d579e..291287ed 100644
--- a/app/helpers/user_to_project_notification.py
+++ b/app/helpers/user_to_project_notification.py
@@ -1,10 +1,13 @@
 from flask import render_template
 from .email import send_email
+from flask import Flask, request
 
 
 def send_user_to_project_notification( email, name, app, template, subject, date, project_name, email_role, success):
-    html = render_template(template, 
-                            email=email, 
+    client_base_url = f'https://{request.host}/register'
+    html = render_template(template,
+                            email=email,
+                            client_base_url=client_base_url,
                             name=name, 
                             date= date,
                             project_name = project_name,
diff --git a/templates/user/anonymous_user_to_project.html b/templates/user/anonymous_user_to_project.html
index 0fc48b8f..4ae048a6 100644
--- a/templates/user/anonymous_user_to_project.html
+++ b/templates/user/anonymous_user_to_project.html
@@ -186,7 +186,7 @@
                         <tr>
                           <td align="center" style="border-radius: 3px" bgcolor="#008AC1">
                             <a
-                              href="https://cranecloud.io/register"
+                              href={{client_based_url}}
                               target="_blank"
                               style="
                                 font-size: 20px;
diff --git a/templates/user/user_to_project.html b/templates/user/user_to_project.html
index a1506c0e..55b5c54b 100644
--- a/templates/user/user_to_project.html
+++ b/templates/user/user_to_project.html
@@ -185,7 +185,7 @@
                         <tr>
                           <td align="center" style="border-radius: 3px" bgcolor="#008AC1">
                             <a
-                              href="https://app.cranecloud.io/login"
+                              href={{client_based_url}}
                               target="_blank"
                               style="
                                 font-size: 20px;