Adds model

bookwyrm/models/site.py

@@ -123,6 +123,18 @@ class PasswordReset(models.Model):
         return "https://{}/password-reset/{}".format(DOMAIN, self.code)
 
 
+class EmailBlocklist(models.Model):
+    """blocked email addresses"""
+
+    created_date = models.DateTimeField(auto_now_add=True)
+    domain = models.CharField(max_length=255)
+
+    @property
+    def users(self):
+        """find the users associated with this address"""
+        User.objects.filter(email__endswith=f"@{self.domain}")
+
+
 # pylint: disable=unused-argument
 @receiver(models.signals.post_save, sender=SiteSettings)
 def preview_image(instance, *args, **kwargs):