Hot off the heels of last week's addition of domain-based filtering, you can now filter your subscribers by how they joined your newsletter, including such hallowed sources as:
| Source | Description | 
|---|---|
| API | Subscribers added through our API (great for tracking custom integrations) | 
| Import | Subscribers from bulk imports (CSV uploads, migrations from other platforms) | 
| Organic | People who signed up through your subscription forms | 
| User | Subscribers you manually added | 
| Stripe | Subscribers created through paid subscriptions | 
This makes it easy to apply bulk actions ("tag everyone who I added back in November") or just to narrow down your audience for a specific email.