---
title: "IP Piggybacking - Shared IP Pools | OutboundSMTP"
description: "Leverage our established shared IP pools with strong sender reputation. Ideal for lower-volume senders who want reliable deliverability without managing dedicated IPs."
image: "https://outboundsmtp.com/images/og-default.png"
canonical: "https://outboundsmtp.com/features/ip-piggybacking/"
---

# IP Piggybacking 

Send from our established, high-reputation shared IP pools. Get great deliverability from day one -- no warming required.

[ Try 1000 Free Credits → ](https://insight.iljmp.com/4/smtp-free) [ View Pricing ](/pricing/) 

Shared IP Pools 

## Established reputation, instant deliverability

### Pre-Warmed IPs

Our shared IP pools have years of established sending history and strong reputation with all major mailbox providers.

### No Warming Required

Start sending immediately at full volume. No gradual ramp-up needed -- our IPs are already trusted by Gmail, Outlook, Yahoo, and more.

### Monitored Quality

We actively monitor every sender on our shared pools. Bad actors are removed quickly, keeping reputation strong for all users.

### Cost Effective

Shared IPs are included in all plans at no additional cost. Get reliable deliverability without the overhead of dedicated IP management.

### Automatic Failover

Our shared pools use multiple IPs with automatic failover. If one IP is throttled, traffic shifts to healthy IPs seamlessly.

### Easy Upgrade Path

Start on shared IPs and upgrade to dedicated when you are ready. We handle the transition and IP warming for a smooth migration.

Use Cases 

## When shared IPs make sense

### Low-to-Medium Volume Senders

If you send fewer than 50,000 emails per month, shared IPs give you strong deliverability without the cost of dedicated infrastructure.

### Transactional Email

Password resets, order confirmations, and notifications benefit from our pool's established reputation with time-sensitive delivery.

### Getting Started

New senders who need to start sending immediately. Leverage our reputation while you build your own, then upgrade to dedicated IPs.

### Multi-Application Setups

Use shared IPs for lower-priority applications while dedicating IPs to your most critical email streams. Mix and match per sub-account.

## Start sending from day one

Our shared IPs are ready to go. Get 1,000 free credits -- no warming, no waiting.

[Try 1000 Free Credits→](https://insight.iljmp.com/4/smtp-free)[Compare Plans](/pricing/)

```json
{"@context":"https://schema.org","@type":"Organization","name":"OutboundSMTP","url":"https://outboundsmtp.com","logo":{"@type":"ImageObject","url":"https://outboundsmtp.com/images/outboundsmtp-logo.png"},"description":"Enterprise SMTP relay service by DuoCircle. Dedicated IPs, sub-accounts, full authentication, and reliable email delivery for businesses of all sizes.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]},"sameAs":["https://www.linkedin.com/company/duocircle","https://www.facebook.com/duocircle/","https://x.com/duocircle","https://github.com/duocircle"],"aggregateRating":{"@type":"AggregateRating","ratingValue":"4.7","reviewCount":"15","bestRating":"5","worstRating":"1","url":"https://www.g2.com/products/outbound-smtp/reviews"},"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://outboundsmtp.com/contact-us/"},"knowsAbout":["SMTP Relay","Email Delivery","Email Infrastructure","Dedicated IP Addresses","Email Authentication","SPF","DKIM","DMARC","Transactional Email","Outbound Email"]}
```

```json
{"@context":"https://schema.org","@type":"WebSite","name":"OutboundSMTP","url":"https://outboundsmtp.com","description":"Enterprise SMTP relay service by DuoCircle. Dedicated IPs, sub-accounts, full authentication, and reliable email delivery for businesses of all sizes.","publisher":{"@type":"Organization","name":"OutboundSMTP","url":"https://outboundsmtp.com","logo":{"@type":"ImageObject","url":"https://outboundsmtp.com/images/outboundsmtp-logo.png"},"description":"Enterprise SMTP relay service by DuoCircle. Dedicated IPs, sub-accounts, full authentication, and reliable email delivery for businesses of all sizes.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}}}
```

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://outboundsmtp.com/"},{"@type":"ListItem","position":2,"name":"Features","item":"https://outboundsmtp.com/features/"},{"@type":"ListItem","position":3,"name":"IP Piggybacking","item":"https://outboundsmtp.com/features/ip-piggybacking/"}]}
```