60-day warmup timeline showing how 30 domains ramp up to 5,000 emails/day
Total Domains
30
Target Volume
5,000
emails/day
Warmup Period
30
days
Risk Per Domain
3.3%
vs 100% single domain
Starting warmup - 10 emails/domain
Week 1 complete - reputation establishing
Week 2 complete - trust building
Whisper Level reached - optimal reputation
Warmup complete - approaching full capacity
Normal operation - stable reputation
Maximum safe volume - reputation established
If one domain burns, you lose 3.3% of capacity (not 100%). The other 29 domains continue operating normally.
30 emails/day per domain falls below ISP "Mass Mailer" thresholds, appearing as natural human sending.
10% max increase per week prevents sudden volume spikes that trigger AI spam filters.