Domain Warmup

Warmup builds reputation gradually. New domains or domains with little recent sending history should not start at full volume.

Warmup rules​

• Start with engaged recipients.
• Increase volume gradually.
• Keep content consistent.
• Watch bounces, complaints, delays, opens, and clicks.
• Pause ramp-up when a provider starts deferring or rejecting mail.

Warmup is not a fixed calendar. It depends on recipient quality, domain history, and mailbox-provider response.