user can block contact directly on the dashboard

app/dashboard/templates/dashboard/index.html

@@ -327,6 +327,8 @@
                     {{ contact.website_email }}
                     <i class="fa fa-paper-plane  mr-2" data-toggle="tooltip" title="Email sent to alias"></i>
                     {{ email_log.created_at | dt }}
+                    {% include 'partials/toggle_contact.html' %}
+
                   {% endif %}
                 {% else %}
                   No emails received/sent in the last 14 days. Created {{ alias.created_at | dt }}.

app/dashboard/views/index.py

@@ -15,6 +15,7 @@ from app.models import (
     AliasGeneratorEnum,
     User,
     EmailLog,
+    Contact,
 )
 
 
@@ -188,3 +189,28 @@ def index():
         filter=alias_filter,
         stats=stats,
     )
+
+
+@dashboard_bp.route("/contacts/<int:contact_id>/toggle", methods=["POST"])
+def toggle_contact(contact_id):
+    """
+    Block/Unblock contact
+    """
+    contact = Contact.get(contact_id)
+
+    if not contact or contact.alias.user_id != current_user.id:
+        return "Forbidden", 403
+
+    contact.block_forward = not contact.block_forward
+    Session.commit()
+
+    if contact.block_forward:
+        toast_msg = f"{contact.website_email} can no longer send emails to {contact.alias.email}"
+    else:
+        toast_msg = (
+            f"{contact.website_email} can now send emails to {contact.alias.email}"
+        )
+
+    return render_template(
+        "partials/toggle_contact.html", contact=contact, toast_msg=toast_msg
+    )

templates/partials/toggle_contact.html

@@ -0,0 +1,15 @@
+<button
+    class="ml-2 btn btn-sm {% if contact.block_forward %} btn-outline-success {% else %} btn-outline-warning {% endif %}"
+    hx-post="{{ url_for('dashboard.toggle_contact', contact_id=contact.id) }}" hx-swap="outerHTML">
+  {% if contact.block_forward %}
+    Unblock sender
+  {% else %}
+    Block sender
+  {% endif %}
+</button>
+
+{% if toast_msg %}
+  <script>
+    toastr.success("{{ toast_msg }}");
+  </script>
+{% endif %}