create notification for bounce email during reply phase

email_handler.py

@@ -1710,6 +1710,17 @@ def handle_bounce_reply_phase(envelope, msg: Message, email_log: EmailLog):
         alias,
         contact,
     )
+    Notification.create(
+        user_id=user.id,
+        title=f"Email cannot be sent to { contact.email } from your alias { alias.email }",
+        message=Notification.render(
+            "notification/bounce-reply-phase.html",
+            alias=alias,
+            contact=contact,
+            refused_email_url=refused_email.get_url(),
+        ),
+        commit=True,
+    )
     send_email_with_rate_control(
         user,
         ALERT_BOUNCE_EMAIL_REPLY_PHASE,

templates/notification/bounce-reply-phase.html

@@ -0,0 +1,39 @@
+<div>
+  This might mean {{ contact.email }}
+  <ul>
+    <li>is not a valid email address, or</li>
+    <li>doesn't exist, or</li>
+    <li>its mail server refuses your email</li>
+  </ul>
+</div>
+
+<a href="{{ refused_email_url }}" class="btn btn-primary">
+  View the bounced email
+</a>
+
+<div>
+  The email is automatically deleted in 7 days.
+</div>
+
+<div>
+  Please consider the following options: <br>
+
+  <ol>
+    <li>If the email is not spam, you can create a
+      <a href="https://simplelogin.io/docs/getting-started/troubleshooting/">filter</a>
+      to explicitly allow all emails from SimpleLogin. <br>
+    </li>
+
+    <li>
+      If this email is indeed spam, it means your alias {{ alias.email }} is now in the hands of a spammer.
+      You can either <a href="{{ disable_alias_link }}">disable the alias</a>
+      or <a href="{{ block_sender_link }}">block the sender</a> if they send too many spams.
+    </li>
+  </ol>
+
+
+</div>
+
+
+
+