# Optimal domains & mailboxes calculator

Calculating your ideal number of domains and mailboxes

## How many emails would you like to send per day?

## How many emails would you like to send per mailbox?

Select

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## How many mailboxes do you want to have per domain?

Select

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## Check the result

Please fill in these fields to see the result:

## Test domain performance with email providers

Check deliverability across providers, spot spam folder placement, and get enhancement tips

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### Connect your email provider

Connect your provider to Warmy.io so we can automate insights for you

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### Reporting mechanism

Check how your domain behaves with different providers

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### Gain granular insights

Choose your preferred test timing to track email deliverability performance

## Compatible with every major email provider!

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## Quick Tips

### What is the purpose of the Mailbox Calculator?

The Mailbox Calculator helps businesses determine the optimal number of domains and mailboxes they need based on their daily email sending requirements. This tool is essential for planning email campaigns and ensuring efficient use of resources

### Why do you need multiple email addresses?

Using multiple email addresses allows you to spread out your email volume, which can enhance deliverability and reduce the risk of being flagged as spam. It also helps in segmenting different types of communications and can increase the effectiveness of your email campaigns

### How can you warm up multiple emails and domains easily?

Warming up your emails and domains involves gradually increasing the volume of emails sent from new addresses to establish a reputation with ISPs. To streamline this process, you can use [Warmy.io](https://www.warmy.io/), which automates the warming up of your multiple emails and domains, ensuring better deliverability and performance

### How does having multiple domains benefit my email marketing strategy?

Multiple domains can help protect your sender reputation by isolating potential issues to one domain at a time

### How often should I review my domain and mailbox needs using the Mailbox Calculator?

It's a good idea to review your needs whenever there is a significant change in your email sending strategy or volume

### Where can I find more help if I have issues using the Mailbox Calculator?

For additional support, please contact our support team.