diff --git a/app/dashboard/views/custom_alias.py b/app/dashboard/views/custom_alias.py
index d516c4b7..e575cef0 100644
--- a/app/dashboard/views/custom_alias.py
+++ b/app/dashboard/views/custom_alias.py
@@ -41,7 +41,7 @@ def custom_alias():
             else:
                 # create the new alias
                 LOG.d("create custom alias %s for user %s", full_email, current_user)
-                GenEmail.create(email=full_email, user_id=current_user.id)
+                GenEmail.create(email=full_email, user_id=current_user.id, custom=True)
                 db.session.commit()
 
                 flash(f"Email alias {full_email} has been created", "success")
diff --git a/app/oauth/views/authorize.py b/app/oauth/views/authorize.py
index f02fad25..516d061e 100644
--- a/app/oauth/views/authorize.py
+++ b/app/oauth/views/authorize.py
@@ -123,7 +123,9 @@ def authorize():
                 email = f"{convert_to_id(custom_email_prefix)}.{email_suffix}@{EMAIL_DOMAIN}"
                 LOG.d("create custom email alias %s for user %s", email, current_user)
 
-                gen_email = GenEmail.create(email=email, user_id=current_user.id)
+                gen_email = GenEmail.create(
+                    email=email, user_id=current_user.id, custom=True
+                )
                 db.session.flush()
             else:  # user picks an email from suggestion
                 if chosen_email != current_user.email: