Explained
The questions we get asked most.
Deliverability
What is DMARC?
What is email deliverability, and how is it different from delivery rate?
What is engagement-based filtering, and how do mailbox providers use it?
What is Google Postmaster Tools, and what do its dashboards mean?
What is greylisting, and why did my email arrive late?
What is one-click unsubscribe, and how do I implement List-Unsubscribe?
What is SPF, and what does an SPF record do?
Why are my emails going to spam?
Build on the same network.
A test API key is yours immediately. Production unlocks when you add a payment method and verify a sender.