> For the complete documentation index, see [llms.txt](https://helpdocs.ycloud.com/help-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helpdocs.ycloud.com/help-center/integrations/channels/email/best-practices-for-email/warm-up-sending.md).

# Warm-up Sending

New domains or IP addresses may be considered suspicious by ISPs until they have established a good sender reputation. To improve email deliverability, it is important to gradually warm up the IP/domain/reputation by increasing the volume of sends while ensuring that emails are delivered normally.

Warm-up is a process that takes time and requires careful consideration of recipients, frequency, and content. During the warm-up process, it is important to monitor email returns and adjust sending strategies as needed to ensure normal email delivery. Here are some key factors to consider:

* Target recipients: Only send emails to those who have opted in, especially those least likely to complain or bounce.
* Email frequency: Keep the frequency of email sends at an appropriate level, avoiding sending too many emails too quickly.
* Email quality: Ensure your emails are of high quality and avoid sending illegal or spam emails.

By following these guidelines, you can successfully enhance your IP/domain reputation and improve your email deliverability.

## Warm-Up Recommendations

We recommend following a simple 14-day plan. The daily send volume is shown in the table below.

| Day    | Daily Volume |
| ------ | ------------ |
| Day 1  | 200          |
| Day 2  | 500          |
| Day 3  | 1000         |
| Day 4  | 2000         |
| Day 5  | 5000         |
| Day 6  | 10,000       |
| Day 7  | 14,000       |
| Day 8  | 20,000       |
| Day 9  | 25,000       |
| Day 10 | 35,000       |
| Day 11 | 50,000       |
| Day 12 | 80,000       |
| Day 13 | 130,000      |
| Day 14 | 200,000      |

If the email deliverability rate is below 85%, it is recommended to revert to the previous day's sending speed to ensure a higher success rate.


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