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Understanding IP Pools and How to Use Them

This article will help you understand what IP pools are, why they matter, and how to use them effectively within SendPost.

Najwa Syeda avatar
Written by Najwa Syeda
Updated over 3 weeks ago

IP pools allow you to organize and manage how your emails are sent by grouping them under specific sending IP addresses. With SendPost, IP pools help maintain sender reputation, improve deliverability, and separate different types of email traffic — such as marketing, transactional, and high-volume campaigns.

This ensures that one type of traffic doesn't negatively impact another if issues arise.

Before You Begin

You will need:

  1. A SendPost Account with access to the IP Pools section.

  2. At least one assigned IP address (dedicated or shared).

  3. Knowledge of your email categories (transactional, marketing, newsletters, etc.).

  4. Permission to manage email sending settings.

Step-by-Step Instructions

What Are IP Pools?

IP pools are groups of one or more IP addresses used for sending your emails.

They help organize your sending strategy by allowing specific campaigns or email types to use dedicated or shared IPs.

Managing and Monitoring IP Pools

Return to Settings → IP Pools.

Check each pool’s sending reputation, volume, and bounce rates.

Warm up newly added IPs slowly by increasing volume gradually.

Tips & Best Practices

  • Separate transactional and marketing traffic.
    This keeps critical emails (password resets, OTPs) safe from deliverability issues.

  • Don’t overload a single IP.
    Spread high-volume sends across multiple pools when possible.

  • Warm up new IPs before heavy sending.
    Start small (50–100 emails/day) and increase gradually.

  • Monitor bounce and complaint rates.
    High soft bounces can indicate reputation or throttling issues in a pool.

  • Use descriptive pool names.
    Makes management easier, especially for larger teams.

Conclusion

IP pools play a crucial role in effective email deliverability. By assigning different email types to dedicated pools and monitoring their performance, you can maintain strong sender reputation and ensure consistent inbox placement.

With SendPost’s flexible IP pool system, managing large or diverse email traffic becomes simple, organized, and highly efficient.

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