diff --git a/app/dashboard/views/mailbox.py b/app/dashboard/views/mailbox.py
index 0746387a..2fba1b5e 100644
--- a/app/dashboard/views/mailbox.py
+++ b/app/dashboard/views/mailbox.py
@@ -123,7 +123,12 @@ def mailbox_verify():
     if not code:
         # Old way
         return verify_with_signed_secret(mailbox_id)
-    mailbox = mailbox_utils.verify_mailbox_code(current_user, mailbox_id, code)
+    try:
+        mailbox = mailbox_utils.verify_mailbox_code(current_user, mailbox_id, code)
+    except mailbox_utils.MailboxError as e:
+        LOG.i(f"Cannot verify mailbox {mailbox_id} because of {e}")
+        flash(f"Cannot verify mailbox: {e.msg}", "error")
+        return render_template("dashboard/mailbox_validation.html", mailbox=mailbox)
     LOG.d("Mailbox %s is verified", mailbox)
     return render_template("dashboard/mailbox_validation.html", mailbox=mailbox)
 
diff --git a/app/models.py b/app/models.py
index 96794d8c..9ad0ed1e 100644
--- a/app/models.py
+++ b/app/models.py
@@ -1660,18 +1660,6 @@ class Alias(Base, ModelMixin):
         Session.add(new_alias)
         DailyMetric.get_or_create_today_metric().nb_alias += 1
 
-        # Internal import to avoid global import cycles
-        from app.events.event_dispatcher import EventDispatcher
-        from app.events.generated.event_pb2 import AliasCreated, EventContent
-
-        event = AliasCreated(
-            alias_id=new_alias.id,
-            alias_email=new_alias.email,
-            alias_note=new_alias.note,
-            enabled=True,
-        )
-        EventDispatcher.send_event(user, EventContent(alias_created=event))
-
         if (
             new_alias.flags & cls.FLAG_PARTNER_CREATED > 0
             and new_alias.user.flags & User.FLAG_CREATED_ALIAS_FROM_PARTNER == 0
@@ -1684,6 +1672,18 @@ class Alias(Base, ModelMixin):
         if flush:
             Session.flush()
 
+        # Internal import to avoid global import cycles
+        from app.events.event_dispatcher import EventDispatcher
+        from app.events.generated.event_pb2 import AliasCreated, EventContent
+
+        event = AliasCreated(
+            alias_id=new_alias.id,
+            alias_email=new_alias.email,
+            alias_note=new_alias.note,
+            enabled=True,
+        )
+        EventDispatcher.send_event(user, EventContent(alias_created=event))
+
         return new_alias
 
     @classmethod