---
title: "Split Your Lead List by Google vs Outlook (Free) | WarmInboxes"
description: "A short walkthrough of the free Warm Inboxes ESP segmentation tool: upload a lead list, split it by Google, Microsoft and gateway inboxes, and see how many…"
url: https://warminboxes.com/videos/esp-segmenter
breadcrumb: "Home > Tool demos > ESP Segmentation"
---
# Split Your Lead List by Google vs Outlook (Free)

Tool demo · ESP Segmentation

A short walkthrough of the free Warm Inboxes ESP segmentation tool: upload a lead list, split it by Google, Microsoft and gateway inboxes, and see how many mailboxes each segment needs.

## ESP Segmentation

Split your list by Google, Microsoft and gateway inboxes, then get told how many mailboxes to buy.

[Run the ESP Segmentation →](https://warminboxes.com/esp-segmenter) Free, no account.