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# How to Warm Up Email Accounts to Avoid Spam

# How to Warm Up Email Accounts to Avoid Spam

Gradually increase sending volume on new email accounts to build sender reputation and improve deliverability.

## Why warm-up is necessary

New email accounts have no sending history. Sending high volumes immediately signals spam behavior to email providers, causing:
* Emails landing in spam folders
* Account throttling or suspension
* Domain reputation damage
* Low open and reply rates

## How warm-up works

Warm-up gradually increases sending volume over 2-4 weeks:

| Week | Daily Emails | Cumulative Trust |
| ---- |
| 1 | 10-20 | Building |
| 2 | 30-50 | Establishing |
| 3 | 75-100 | Growing |
| 4+ | Full limit | Established |

## Enabling warm-up in 100Hires

1. Go to **Settings** > **Email Carousel** (https://app.100hires.com/settings/email-carousel)
2. Select the email account to warm up ![How to Warm Up Email Accounts to Avoid Spam: Enabling warm-up in 100Hires](https://storage.crisp.chat/users/helpdesk/website/-/4/f/a/a/4faab8f2b2ab0400/how-to-warm-up-email-accounts-_461dm.png)
3. Enable **Automatic warm-up** ![How to Warm Up Email Accounts to Avoid Spam: Enabling warm-up in 100Hires](https://storage.crisp.chat/users/helpdesk/website/-/4/f/a/a/4faab8f2b2ab0400/how-to-warm-up-email-accounts-_1xafzwv.png)
4. System manages daily limits automatically

## Automatic limit adjustment

With warm-up enabled:
* Daily sending limit starts low
* System monitors deliverability metrics
* Limits increase as reputation builds
* Adjusts down if problems detected

## Manual warm-up strategy

If managing limits yourself:

### Week 1
* Limit: 10-20 emails/day
* Send to engaged contacts (people likely to open)
* Monitor bounce rates

### Week 2
* Limit: 30-50 emails/day
* Continue prioritizing quality recipients
* Check spam folder placement

### Week 3
* Limit: 75-100 emails/day
* Expand to broader audience
* Review open rates

### Week 4+
* Increase to normal sending volume
* Maintain consistent daily sending
* Monitor metrics continuously

## Best practices

### Send to engaged recipients first
* Start with warm leads who will open
* Opens and replies build reputation
* Avoid cold lists during warm-up

### Maintain consistency
* Send every day, not in bursts
* Consistent volume signals legitimacy
* Gaps can reset progress

### Monitor deliverability
Watch for warning signs:
* Bounce rate > 5%
* Open rate < 10%
* Sudden drop in engagement
* Emails appearing in spam

### Avoid spam triggers
During warm-up, be extra careful:
* No spam words in subject lines
* Personalize content
* Include unsubscribe option
* Use clean email lists

## Signs warm-up is working

* Steady or improving open rates
* Low bounce rates
* Recipients finding emails in inbox
* No spam complaints
* Gradual increase in sending capacity

## Troubleshooting

### High bounce rate
* Verify email addresses before sending
* Use ZeroBounce integration
* Remove invalid addresses

### Low open rates
* Improve subject lines
* Send at optimal times
* Segment your audience

### Emails going to spam
* Reduce volume
* Improve content quality
* Check domain authentication (SPF, DKIM)

## Related screenshots

These screenshots show the 100Hires areas used in this workflow.

![How to Set Up Nurture Campaigns: Creating a nurture campaign](https://storage.crisp.chat/users/helpdesk/website/-/4/f/a/a/4faab8f2b2ab0400/how-to-set-up-nurture-campaign_obdjrj.png)