> ## Documentation Index
> Fetch the complete documentation index at: /docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Warm-up Guide

> How to safely ramp up sending volume on a new domain or dedicated IP address.

# Domain & IP Warm-up Guide

When sending from a newly registered domain or a fresh dedicated IP, destination mailbox providers have no historical data to evaluate whether you are a legitimate business or a spammer.

Gradually warming up your sending volume establishes a positive reputation and ensures consistent inbox placement.

***

## 4-Week Warm-up Schedule

If you have an audience of 50,000+ subscribers, distribute your sends over 4 weeks:

| Timeline | Max Daily Volume | Target Audience |
| :- | :- | :- |
| **Week 1** | 200–500 emails/day | Most engaged users (opened/clicked in last 30 days) |
| **Week 2** | 1,000–2,500 emails/day | Engaged users (active in last 60 days) |
| **Week 3** | 5,000–10,000 emails/day | Active subscribers |
| **Week 4+** | 20,000+ emails/day | Full list (excluding sunsetted contacts) |

***

## Tips for a Successful Warm-up

1. **Start with High-Engagement Traffic**: Begin with transactional emails (password resets, order receipts, sign-up confirmations). These emails have the highest open rates (\~60–80%) and generate positive reputation signals.
2. **Monitor Bounce and Complaint Metrics Daily**:
   * Keep hard bounces below **2%**.
   * Keep spam complaints below **0.1%** (never exceed 0.3%).
3. **Do Not Skip Days Abruptly**: Senders that send 50,000 emails on Monday and zero for the rest of the week look suspicious to ISP spam filters. Distribute volume evenly across days.


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