# How long should I warm up a cold email domain?
> Plan on two to four weeks of rising, real-looking volume before a campaign. A new domain that sends like an old server on day one buys a spam folder.
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New domains have no reputation. Warmup is sending small amounts of mail that gets opened and replied to, then raising the cap. Tools can help. They cannot invent a five-year-old domain.

Two weeks is a minimum for many teams. Four is safer if the domain is brand new or the brand is unknown. Copying someone else's 3-day warmup is how you share their bad luck.

Do not warmup and blast the same week at 200 a day. The warmup graph should look like a slope, not a cliff.

Keep bounces near zero during warmup. One dirty list can poison the domain before the campaign "starts."

If the domain already sends customer mail, do not warmup cold on it. Use a sibling domain. See [separate domain](/help/should-i-use-a-separate-domain-for-cold-email).

## Related

- [How many cold emails can I send per day?](https://omentir.com/help/how-many-cold-emails-can-i-send-per-day.md)
- [Do I need SPF, DKIM, and DMARC for cold email?](https://omentir.com/help/do-i-need-spf-dkim-dmarc-for-cold-email.md)
- [How do I warm up a LinkedIn account before outreach?](https://omentir.com/help/how-to-warm-up-a-linkedin-account-for-outreach.md)

## Frequently asked questions

**Can I skip warmup on Google Workspace?**

You can skip it. You will learn why people do not. Providers still watch new sending patterns.

**Does LinkedIn warmup replace email warmup?**

No. Different reputations. Warm the LinkedIn seat and the domain as separate jobs.

**What if I bought an aged domain?**

Aged can help or hurt if it has a spam history. Check it. Age is not innocence.

**When do I know warmup is done?**

When seed inboxes land in primary, bounce is low, and you can raise volume a little without a placement crash. Then still raise slowly.

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