diff --git a/users/migrations/0008_auto_20230308_2245.py b/users/migrations/0008_auto_20230308_2245.py
new file mode 100644
index 00000000..47eb0b90
--- /dev/null
+++ b/users/migrations/0008_auto_20230308_2245.py
@@ -0,0 +1,31 @@
+# Generated by Django 3.2.2 on 2023-03-08 22:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("users", "0007_user_image"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="user",
+            name="claimed",
+            field=models.BooleanField(
+                default=True,
+                help_text="Designates whether this user has been claimed.",
+                verbose_name="claimed",
+            ),
+        ),
+        migrations.AddField(
+            model_name="user",
+            name="valid_email",
+            field=models.BooleanField(
+                default=True,
+                help_text="Designates whether this user's email address is valid, to the best of our knowledge.",
+                verbose_name="valid_email",
+            ),
+        ),
+    ]
diff --git a/users/models.py b/users/models.py
index 05f1b759..e1f14dbd 100644
--- a/users/models.py
+++ b/users/models.py
@@ -58,6 +58,13 @@ class UserManager(BaseUserManager):
         logger.info("Creating superuser with email='%s'", email)
         return self._create_user(email, password, **extra_fields)
 
+    def create_stub_user(self, email, password=None, claimed=False, **extra_fields):
+        """Creates a placeholder ("stub") user."""
+        extra_fields.setdefault("is_staff", False)
+        extra_fields.setdefault("is_superuser", False)
+        logger.info("Creating stub user with email='%s'", email)
+        return self._create_user(email, password, claimed=claimed, **extra_fields)
+
     def record_login(self, user=None, email=None):
         """
         Record a succesful login to last_login for the user by user
@@ -150,6 +157,18 @@ class User(BaseUser):
     badges = models.ManyToManyField(Badge)
     github_username = models.CharField(_("github username"), max_length=100, blank=True)
     image = models.FileField(upload_to="profile-images", null=True, blank=True)
+    claimed = models.BooleanField(
+        _("claimed"),
+        default=True,
+        help_text=_("Designates whether this user has been claimed."),
+    )
+    valid_email = models.BooleanField(
+        _("valid_email"),
+        default=True,
+        help_text=_(
+            "Designates whether this user's email address is valid, to the best of our knowledge."
+        ),
+    )
 
     def save_image_from_github(self, avatar_url):
         response = requests.get(avatar_url)
diff --git a/users/tests/test_managers.py b/users/tests/test_managers.py
index 38d4c25b..092f11c1 100644
--- a/users/tests/test_managers.py
+++ b/users/tests/test_managers.py
@@ -21,20 +21,37 @@ def test_record_login_user(user):
 
 def test_user_creation(db):
     u = User.objects.create_user("t1@example.com", "t1pass")
-    assert u.is_active == True
-    assert u.is_staff == False
-    assert u.is_superuser == False
+    assert u.is_active is True
+    assert u.is_staff is False
+    assert u.is_superuser is False
 
 
 def test_staff_user_creation(db):
     u = User.objects.create_staffuser("t2@example.com", "t2pass")
-    assert u.is_active == True
-    assert u.is_staff == True
-    assert u.is_superuser == False
+    assert u.is_active is True
+    assert u.is_staff is True
+    assert u.is_superuser is False
 
 
 def test_super_user_creation(db):
     u = User.objects.create_superuser("t3@example.com", "t3pass")
-    assert u.is_active == True
-    assert u.is_staff == True
-    assert u.is_superuser == True
+    assert u.is_active is True
+    assert u.is_staff is True
+    assert u.is_superuser is True
+
+
+def test_create_stub_user(db):
+    u = User.objects.create_stub_user(
+        "t4@example.com",
+        None,
+        first_name="Tester",
+        last_name="Testerson",
+        valid_email=False,
+    )
+    assert u.claimed is False
+    assert u.valid_email is False
+    assert u.is_active is True
+    assert u.is_staff is False
+    assert u.is_superuser is False
+    assert u.first_name == "Tester"
+    assert u.last_name == "Testerson"