From New Domain to Trusted Sender: A 30-Day Warm-Up Journey

Warming up a domain isn’t just a technical step — it’s a journey from “total stranger” to “trusted sender” in the eyes of Gmail and Outlook.
Let’s walk through what a typical 30-day warm-up plan looks like, week by week, and how your deliverability transforms along the way.
📅 Week 1: Breaking the Ice
- Daily volume: 5–10 emails/day.
- Reply rate: 30–40%.
- Inbox placement: ~40–50%.
- Spam hits: High at first, but reducing.
Goal: Teach ESPs you’re human, not a spam bot. Emails are short, conversational, and most get replied to by warm-up accounts.
📅 Week 2: Building Consistency
- Daily volume: 15–30 emails/day.
- Reply rate: 25–30%.
- Inbox placement: 60–70%.
- Spam hits: Dropping under 20%.
Goal: Show stable sending patterns. Gradual growth matters more than big jumps. Engagement is still strong.
👉 Related reading: Step-by-Step Checklist to Warm Up a New Domain
📅 Week 3: Scaling Up
- Daily volume: 30–50 emails/day.
- Reply rate: 20–25%.
- Inbox placement: 75–85%.
- Spam hits: Under 10%.
Goal: Prove your domain can handle more volume without tripping alarms. Some emails may still hit Promotions, but inbox rates climb steadily.
📅 Week 4: Trusted Sender Status
- Daily volume: 50–100 emails/day.
- Reply rate: 15–20%.
- Inbox placement: 85–95%.
- Spam hits: <5%.
Goal: Cement trust. Your domain is now considered safe and consistent. At this point, you can start sending real cold campaigns with confidence.
👉 Related reading: Cold Email is Not Dead: How Warm-Up Boosts Reply Rates
📊 The Warm-Up Metrics Journey
- Reply % falls naturally (from 40% → 15%) as volume grows.
- Inbox placement rises steadily, crossing 90% by Day 30.
- Spam risk drops from ~50% in Week 1 to <5% in Week 4.
AutoWarm tracks all of this automatically: inbox vs spam, replies, daily trends, and domain health.
🚀 Final Takeaway
Warming up a new domain is a process, not an overnight fix.
- Week 1 = introductions.
- Week 2 = consistency.
- Week 3 = scale.
- Week 4 = trust.
By Day 30, your cold emails don’t just get sent — they get seen.
With AutoWarm, you don’t have to babysit the process. Connect your inbox, set your warm-up settings, and watch your domain graduate from “newbie” to “trusted sender.”
Ready to improve your email deliverability?
Start warming up your emails today and see better inbox placement rates.
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