diff --git a/app/jobs/scheduled/enqueue_suspect_users.rb b/app/jobs/scheduled/enqueue_suspect_users.rb
index 1b94dcb3098..b88118a3a31 100644
--- a/app/jobs/scheduled/enqueue_suspect_users.rb
+++ b/app/jobs/scheduled/enqueue_suspect_users.rb
@@ -9,15 +9,19 @@ module Jobs
       return if SiteSetting.must_approve_users
 
       users = User
+        .distinct
         .activated
         .human_users
         .where(approved: false)
         .joins(:user_profile, :user_stat)
-        .where("users.created_at <= ?", 1.day.ago)
+        .where("users.created_at <= ? AND users.created_at >= ?", 1.day.ago, 6.months.ago)
         .where("LENGTH(COALESCE(user_profiles.bio_raw, user_profiles.website, '')) > 0")
         .where("user_stats.posts_read_count <= 1 AND user_stats.topics_entered <= 1")
         .joins("LEFT OUTER JOIN reviewables r ON r.target_id = users.id AND r.target_type = 'User'")
         .where('r.id IS NULL')
+        .joins('LEFT OUTER JOIN user_custom_fields ucf ON users.id = ucf.user_id')
+        .group('users.id, ucf.id')
+        .having('ucf.id IS NULL OR NOT bool_or(ucf.name = ?)', 'import_id')
         .limit(10)
 
       users.each do |user|
diff --git a/spec/jobs/enqueue_suspect_users_spec.rb b/spec/jobs/enqueue_suspect_users_spec.rb
index b614899823b..b1b30e77952 100644
--- a/spec/jobs/enqueue_suspect_users_spec.rb
+++ b/spec/jobs/enqueue_suspect_users_spec.rb
@@ -56,5 +56,29 @@ describe Jobs::EnqueueSuspectUsers do
 
       expect(ReviewableUser.where(target: suspect_user).exists?).to eq(false)
     end
+
+    it 'ignores users created more than six months ago' do
+      suspect_user.update!(created_at: 1.year.ago)
+
+      subject.execute({})
+
+      expect(ReviewableUser.where(target: suspect_user).exists?).to eq(false)
+    end
+
+    it 'ignores users that were imported from another site' do
+      suspect_user.upsert_custom_fields({ import_id: 'fake_id' })
+
+      subject.execute({})
+
+      expect(ReviewableUser.where(target: suspect_user).exists?).to eq(false)
+    end
+
+    it 'enqueues a suspect users with custom fields' do
+      suspect_user.upsert_custom_fields({ field_a: 'value', field_b: 'value' })
+
+      subject.execute({})
+
+      expect(ReviewableUser.where(target: suspect_user).exists?).to eq(true)
+    end
   end
 end