What is Gradual Send and how does domain warmup work?

When launching a new domain for transactional emails, what is the best practice for domain warmup to avoid getting flagged as spam by Gmail or Outlook?

Gradual Send is AutoSend’s built-in automated domain warmup feature.

Instead of sending 50,000 emails on day 1 (which triggers ISP spam filters), Gradual Send automatically ramps up daily sending limits gradually over a schedule.

Key features:

  • Built-in warmup schedule for new sending domains
  • Protects domain reputation with major ISPs (Google, Yahoo, Microsoft)
  • Available across Growth and Scale plans

Read more details in the documentation: AutoSend Gradual Send & Warmup