Deliverability

Authenticate your sending domain (SPF, DKIM, DMARC)

Prove to inbox providers that your emails really come from you. Setting up SPF, DKIM, and DMARC is the single most important thing you can do to reach the inbox.

7 min read

Warm up a new domain or sender

A brand-new sender has no reputation, and inbox providers distrust sudden volume. Warming up gradually — over about 30 days — teaches them you're legitimate.

6 min read

Stay out of spam: a practical checklist

Landing in the inbox is mostly about good habits. Here's a plain-language checklist any marketer can follow to keep emails out of the spam folder.

7 min read

Understand bounces and the suppression list

Some emails can't be delivered. Knowing the difference between a hard and soft bounce — and trusting the suppression list — protects your sender reputation.

6 min read