Direct Mail integrates with Slack via Zapier.
Add new PayPal customers to a Direct Mail mailing list
Your best source for future sales is your list of current customers. Use this Zapier integration to automatically add new PayPal customers to your Direct Mail mailing list. Timely, targeted email marketing can help turn a one-time purchase into a lifelong customer. Set up this integration using Zapier
Additional Integrations with PayPal
You can create custom integrations that go beyond what is listed above. Visit Zapier and click "Make a Zap!" to create your own custom automation.