What is domain warmup?

Domain warmup builds reputation for a domain that is new or needs rehabilitation:

New domain warmup:

Start with minimal volume

Send to most engaged recipients first

Gradually increase over weeks

Build positive engagement history

Recovery warmup:

Reduce volume significantly

Focus on highest-engagement segments

Rebuild trust through positive signals

Gradually expand audience

Why it works:

Providers learn your sending patterns

Positive engagement teaches algorithms you are legitimate

Low volume limits damage from any issues

Gradual increase shows stable, predictable behavior

Earning trust with small, successful shipments before taking on larger cargo.