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REmail Deliverability Glossary

Ramp-Up Schedule

The specific plan of increasing daily send volume over time during warm-up. See Email Volume Ramp-Up for a full example schedule and principles.

A ramp-up schedule is the specific plan of increasing daily send volume over time during warm-up. It defines exactly how many emails to send each day or week, starting small and growing progressively.

The goal is to give ISPs time to observe consistent, positive behavior at each volume level before moving higher. A properly followed ramp-up schedule is the difference between a successful warm-up and a deliverability crisis.

See Email Volume Ramp-Up for a full example schedule and the core principles behind safe volume growth.

Frequently Asked Questions

What is a typical email warm-up ramp-up schedule?

A standard ramp-up for a new domain targeting 1,000 emails/day: Week 1: 20–50 per day. Week 2: 100–200 per day. Week 3: 300–500 per day. Week 4: 500–1,000 per day. After reaching target volume, maintain for 2 additional weeks before relying on the domain for full campaign volume. The pace can be accelerated if engagement metrics are consistently excellent (inbox placement above 95%, zero complaints, strong reply rates) and should be slowed if any metrics degrade. Inboxwarm.ai's auto-ramp feature adjusts the schedule dynamically based on real-time engagement signals.

Can I use the same ramp-up schedule for domain and IP warm-up?

Yes — when warming up new infrastructure from scratch, domain and IP warm-up happen simultaneously on the same ramp schedule. You don't run two separate schedules. The warm-up emails you send build reputation for both the sending domain and the sending IP at the same time. The only scenario where schedules diverge is if you change sending infrastructure mid-way through — your domain reputation progress continues, but you need to restart IP warm-up on the new IP from day one, often at a lower volume for the first week or two.

What happens if I fall behind on my ramp-up schedule?

Missing a few days of sending during warm-up — due to weekends, holidays, or technical issues — is generally not a serious problem. ISP reputation is built on cumulative history, not strict daily adherence. Resume at or slightly below where you left off and continue normally. What you should avoid is extended gaps (1–2 weeks or more) during active warm-up, which allow the small reputation you've built to begin decaying. If you must pause for an extended period, restart at a lower volume when you resume and rebuild gradually rather than jumping back to your pre-pause level.

Related Terms

E

Email Volume Ramp-Up

The planned, gradual increase in sending volume during warm-up — giving ISPs time to observe positive behavior before large volumes are introduced.

W

Warm-Up (Email Warm-Up)

The process of gradually building positive sender reputation for a new or damaged domain or IP before sending to real audiences at scale.

I

IP Warm-Up

The process of gradually increasing sending volume from a new IP address to build positive ISP reputation before scaling to full send volume.

V

Volume Spike

A sudden large increase in sending volume that deviates from your established pattern. ISPs flag these as suspicious behavior matching spam botnets.

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