diff --git a/djangopasswordlessknox/signals.py b/djangopasswordlessknox/signals.py
index 381dfdb..a7b39f8 100644
--- a/djangopasswordlessknox/signals.py
+++ b/djangopasswordlessknox/signals.py
@@ -76,6 +76,7 @@ def update_alias_verification(sender, instance, **kwargs):
                         if (
                             api_settings.PASSWORDLESS_AUTO_SEND_VERIFICATION_TOKEN
                             is True
+                            and User.objects.filter(id=instance.id).exists()
                         ):
                             email_subject = (
                                 api_settings.PASSWORDLESS_EMAIL_VERIFICATION_SUBJECT
@@ -133,6 +134,7 @@ def update_alias_verification(sender, instance, **kwargs):
                         if (
                             api_settings.PASSWORDLESS_AUTO_SEND_VERIFICATION_TOKEN
                             is True
+                            and User.objects.filter(id=instance.id).exists()
                         ):
                             mobile_message = api_settings.PASSWORDLESS_MOBILE_MESSAGE
                             message_payload = {"mobile_message": mobile_message}