Dedicated IP vs. shared IP addresses for email marketing

A dedicated IP is assigned to a single sender, while a shared IP is used by multiple senders. For email marketing, a dedicated IP gives businesses full control over their sender reputation, making it better suited for high-volume and consistent email campaigns. Shared IPs are often the better choice for lower-volume senders, as they require no IP warm-up and are managed by the email service provider. The right option depends on your email volume, sending frequency, and business needs.

You may already know that an Internet Protocol (IP) address uniquely identifies internet-connected devices. But when it comes to email marketing, choosing between a dedicated IP and a shared IP can directly affect your sender reputation and email deliverability. So, how do you decide?

In this article, we discuss the key aspects to consider when choosing the right type of IP address for email marketing. Do you already know which type of address you need but aren’t sure how or where to acquire it?

Global IPv4 scarcity has made acquiring IP addresses more challenging for businesses worldwide. Fortunately, the market has evolved to offer more flexible ways to obtain IPv4 resources. Keep reading to learn how dedicated and shared IPs fit into today’s IPv4 landscape and what options are available.

Key takeaways

• Dedicated IPs give one sender exclusive control over an IP address and its sender reputation. Shared IPs distribute reputation across multiple senders. The choice between the two depends on the company’s budget and specific needs.
• Internet service providers’ trust is crucial when choosing IPs for successful marketing campaigns.
• IPv4 resource exhaustion slows down the growth of companies that offer dedicated or shared IPs to their customers.
• IP leasing enables companies to lease IP address assets they need quickly and cost-efficiently.

What is a dedicated IP address?

A dedicated IP address is a single IP address assigned exclusively to one user, service, or website. It can be used for various purposes, including email marketing and website hosting. If your website has a dedicated IP address, you can access it by entering its IP address into your browser’s address bar.

You can obtain a dedicated IP address when you purchase hosting services from a hosting service provider. Dedicated IPs are often part of a dedicated hosting solution, which also includes a dedicated server. It is possible to acquire a dedicated IP without a dedicated server as well. Some hosting companies also offer a dedicated IP address as an add-on feature with shared hosting plans.

You can also obtain a dedicated IP from email service providers (ESP), like MailChimp or HubSpot, that offer dedicated IP addresses for marketing campaigns. Many providers also assist with dedicated IP configuration and IP warmup. This helps you reach your desired email volume.

If you want greater control over your email marketing campaigns and email deliverability, a dedicated IP address may be the right choice. However, before you acquire a dedicated IP address for mail advertising, it’s important to understand the advantages, requirements, and limitations.

IP reputation relies on one sender

If you use a dedicated IP address to send email campaigns, you are solely responsible for the IP reputation of your resource. Why is that important? If you build a good reputation with internet service providers (ISPs), your emails are more likely to reach recipients’ inboxes instead of the spam folder. On the other hand, a poor reputation might lead to various IP-related issues, like IP blocklisting.

How can you ensure a solid reputation with ISPs? First, when you receive a dedicated IP, you need to establish trust by following an IP warm-up process. It is necessary to warm up your new IP address. New dedicated IPs do not yet have an email-sending history or IP credibility. You can build a strong reputation by gradually increasing the number of emails you send from a particular IP address.

When using a dedicated IP address, it’s important to monitor your email marketing performance. In particular, monitor how subscribers engage with your emails. Also check whether your messages reach the inbox or end up in the spam folder. Why? High engagement metrics show the success of your marketing campaign and guarantee a spotless reputation with ISPs.

Secure emailing and troubleshooting

Dedicated IPs can provide more control over your email infrastructure and sender reputation. You can configure your email server with a Secure Socket Layer (SSL) certificate to encrypt communications between email clients and the server. Modern SSL certificates work with both dedicated and shared IP addresses, but a dedicated IP gives organizations greater control over their email environment.

Moreover, a dedicated IP can make troubleshooting easier. Because you are the only sender using the IP address, any deliverability issues, IP blocklisting, or changes in sender reputation are directly related to your own sending practices rather than the actions of other users. This makes it easier to identify, investigate, and resolve issues.

Dedicated IP address price

Are you planning your budget carefully? Dedicated IP addresses typically cost more than shared IPs because they’re assigned exclusively to a single customer. Pricing can vary depending on the hosting provider and included services. Organizations should also consider future growth, as expanding email infrastructure may require additional IP addresses.

Unfortunately, due to IPv4 exhaustion, acquiring dedicated IPv4 resources has become more challenging as the global IPv4 address pool continues to tighten. Fortunately, IPv4 leasing gives businesses a more flexible way to access the resources they need without purchasing them outright. We’ll explore this option later in the article.

What is a shared IP address?

Unlike dedicated IPs, providers assign shared IPs to multiple users or websites. This means many domains or email senders share the same IP address. The Domain Name System (DNS) ensures that requests for each domain are routed to the correct website, allowing multiple websites to operate on the same IP address.

Frequently, smaller businesses use a managed WordPress host, shared hosting provider, or email service provider that offers shared IP addresses as part of its services. That said, using a shared IP address does not automatically mean you are using shared hosting, as shared IPs can also be used exclusively for email marketing.

One of the main advantages of shared IPs is cost efficiency. Depending on the service, users may also share server resources, such as hardware, storage, and bandwidth. Choosing a reputable, trusted provider is important, as the reputation and quality of a shared IP can directly affect email deliverability.

From a security standpoint, shared IPs can provide the same level of security as dedicated IPs. Modern Server Name Identification (SNI) technology allows multiple SSL certificates to operate on a single shared IP address, making dedicated IPs unnecessary for SSL in most hosting environments. SSL certificates provide additional protection for websites and emails against different cyberthreats.

When it comes to email sender reputation, you share the same IP address with other senders, so all users can affect it. This may sound like a disadvantage, but not necessarily.

How other senders can affect IP reputation

As you now know, when you use a shared IP address, you share your sender reputation with other email senders. This means other users in the shared IP pool can affect your email deliverability. For example, if another sender uses the shared IP for malicious purposes, such as spamming, it may negatively affect the IP’s reputation and your email performance.

On the other hand, if other email senders have good IP credibility, you can benefit from it and start sending emails immediately without having to build a new sender reputation. Likewise, if you follow good emailing practices yourself, you can help maintain the reputation of the shared IP for all users.

It is also worth noting that reputable shared IP providers have tools to control abusive email senders. They can even ensure that you receive an IP address from an IP pool with a good reputation with ISPs and mailbox providers. Moreover, they can help you combat IP blocklisting and address any security issues that may arise.

Shared IP address price

One of the main advantages of shared IP addresses is their cost efficiency. Because the IP address is shared among multiple users, businesses can access reliable email infrastructure without the additional cost of a dedicated IP. Pricing varies depending on the provider, its plans, and included features.

Shared IP addresses are also commonly used by organizations operating content delivery networks and other environments where multiple websites can efficiently share the same IP address. Their lower cost also helps small and medium-sized businesses launch websites and support their online operations without a significant upfront investment.

Hosting and email marketing companies that offer IP sharing services also help alleviate some of the challenges associated with IPv4 exhaustion. How? By allowing several users to share the same IP address responsibly, they can maximize available address space and enable more organizations to access the IP resources they need in a sustainable way.

Which IP setup should you choose?

If you are still deciding between dedicated or shared IP addresses for your email marketing campaigns, consider these key factors:

• IP address cost and your budget
• The number of emails you send
• Partial or full reputation control

First, evaluate your budget and decide how much you’re willing to invest in your email infrastructure. If you need exclusive control over your IP address and have the budget, a dedicated IP address may be the right choice. If you want to save money for other business needs, a shared IP can provide reliable email delivery without the higher cost.

Another crucial factor to consider is your email volume. Dedicated IPs are best suited for high-volume senders who send thousands of emails to many recipients on a consistent basis. While shared IPs can also support large email campaigns, they are often the better choice for businesses with lower or inconsistent sending volumes.

If you are launching a new business or sending your first email marketing campaigns, a shared IP address might offer a good starting point. As your sending volume grows, you may decide to transition to a dedicated IP.

Sender reputation is another important consideration. If you want full control over your sender reputation and prefer to send email from a unique IP address, consider a dedicated IP for your email campaigns. This way, your ESP won’t place you in a shared IP pool with similar-sized senders, and only you will be responsible for your sending practices.

Keep in mind, however, that if you choose a shared address, you will not have full control over your sender reputation because multiple senders use a shared IP pool. As a result, your email deliverability can be influenced by the sending behavior of other users. Reputable email service providers actively monitor shared IP pools to help maintain a healthy sender reputation and minimize abuse.

IP leasing for email marketing

Are you looking for IPv4 addresses to expand your business? Do you want to offer more shared and dedicated IPs to your customers for hosting or email marketing? Or perhaps your organization needs IPv4 resources to support growing email campaigns?

Due to IPv4 scarcity, acquiring IPv4 addresses has become more challenging and expensive. The broader IPv4 price history shows how the market has evolved over the years. While prices softened in 2026, purchasing IP resources still requires a significant upfront investment. Fortunately, IPv4 leasing offers a more flexible alternative.

IP leasing enables businesses to acquire IPv4 resources quickly and cost-efficiently compared to IP buying. Instead of making a significant upfront investment, organizations can lease the address space they need while preserving capital for other business priorities. On average, an IPv4 address can be leased for around $0.35 per IP per month in 2026, making leasing a more cost-efficient and sustainable way to scale any business.

Moreover, leasing IPv4 addresses enables businesses to acquire resources almost immediately and assign them to any infrastructure. This allows organizations to expand their hosting or email marketing services faster while maintaining a reliable customer experience.

IPXO Platform – the world’s first fully automated IP lease and monetization platform – offers more than 15 million IPv4 addresses from all Regional Internet Registries (RIRs) for all business needs. The platform implements security controls and KYC verification to ensure that you pay only for reputable IPv4 assets from verified IP holders.

For organizations with long-term IPv4 requirements, IPXO’s Commitments feature enables IP lessees to secure custom lease contracts with negotiated pricing. This helps businesses gain predictable long-term access to IPv4 resources while benefiting from the flexibility of leasing.

Conclusion

IP addresses are crucial for successful email campaigns and hosting services. Shared and dedicated IP addresses each have advantages and limitations, and the ultimate choice between the two depends on your particular business requirements. While dedicated IPs cost more, they can offer greater control and flexibility.

Unfortunately, in the wake of global IPv4 exhaustion, companies that provide dedicated and shared IP address services worldwide might find it increasingly challenging to acquire valuable IP assets. Fortunately, IPv4 leasing offers a flexible and cost-efficient alternative.

Companies that require IP addresses for hosting and email marketing services can lease the required number of IPv4 addresses to expand their services quickly and cost-efficiently.

Interested in IPv4 leasing? Book a demo to see the IPXO Platform in action and learn how your business can quickly access reputable IPv4 resources. Our team will be happy to answer your questions and help you find the right solution.

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