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6 Tips for Accessible Emails Welcoming Manoel do Amaral, our new Brand Designer Welcoming Michael Vaz, our new Customer Success Engineer Six Steps to Improve Your Sender Reputation Welcoming Tatira Andrade, our new Executive Assistant Welcoming Pedro Ivo Hudson, our new Design Engineer Welcoming Diel Duarte, our new Open source Engineer Welcoming Areia Spinner, our new Recruiter Resend Forward: A Conference about Craft React Email 6.0 Custom Tracking Domains AI Email Editor Introducing Automations Welcoming Ahmed Tolba, our new SRE Engineer Welcoming Aneil Singh, our new Founding Account Executive Welcoming Lucas Motta, our new Software Engineer Welcoming Trey Knowles, our new Founding Account Executive Welcoming Anxhela Carciu, our new SRE Engineer Introducing DMARC Analyzer Welcoming Evan Thibodeau, our new Customer Success Engineer Welcoming Derich Pacheco, our new Software Engineer Welcoming Alec Ventura, our new Data Engineer Welcoming Felipe Freitag, our new Software Engineer Welcoming Mateusz Wos, our new Software Engineer Incident report for February 15, 2026 Email automation for OpenClaw How to Create a DevTools Agent Skill Introducing Email Skills Why You Should Embrace the Promotions Tab Slater Smith, our new Customer Success Engineer Do You Need a Warmup Service? Welcoming Zá Scalon, our new Brand Designer How Replit Built Effortless Email Sending Features 1,000,000 users Top 10 new features in 2025 Welcoming Danilo Campos, our new Design Engineer How Dub Uses Webhooks to Power Features Incident report for November 18, 2025 Resend Forward 5: Wrap Up One More (AI) Thing React Email 5.0 Unsubscribe Topics New Contacts Experience Introducing Templates Inbound Emails $3M to Make Email Safer Hacktoberfest 2025 Four Ways to Hurt Your Sender Reputation Resend MCP Hackathon Welcoming Christina Martinez, our new Developer Experience Engineer How to read a DMARC report Welcoming Erin Levine, our new Chief of Staff How to Validate Form Inputs Engineering an AI App Welcoming Lucas da Costa, our new Software Engineer Welcoming Lucas Vieira, our new Software Engineer Resend acquires Briefer How Raycast Modernized their Email Sending How to Get Email Consent DMARC Policy Modes Welcoming Gabriel Miranda, our new Software Engineer Rebranding Resend The 7 Best Email Verification APIs for Developers How DMARC Applies to Subdomains Welcoming Pedro Gomes, our new Software Engineer Do You Need a Dedicated IP? The 6 best notification infrastructure services The Fixer Why Your Emails are Going to Spam Engineering Idempotency Keys Microsoft’s bulk sending requirements for 2025 Welcoming Rehan van der Merwe, our new Devops Engineer 400,000 users and beyond Welcoming Cassio Zen, our new Software Engineer Resend acquires Mergent How to warm up a new domain Welcoming Carolina Josephik, our new Software Engineer Launch Week: Behind the Scenes Welcoming Isabella Aquino, our new Software Engineer Resend Forward 4: Wrap Up React Email 4.0 Multiplayer Editor Broadcast API Multiple Teams new.email Public Launch Welcoming Anna Ward, our new Postmaster How Gumroad Migrated 100M Emails to Resend Welcoming João Melo, our new Software Engineer Welcoming Jp Valery, our new Customer Success Engineer What is AX (Agent Experience) and how to improve it Welcoming Pauline Chin, our new Customer Success Engineer Introducing new.email How we use Friction Logs to improve the product Top 10 Email Deliverability Tips Welcoming Giovana Yahiro, our new Designer Engineer What BIMI's Changes Mean for Email Top 10 new features in 2024 Design Engineering an X Component Welcoming Alexandre Cisneiros, our new Software Engineer Resend raises $18M Series A
Introducing Managed Dedicated IPs
Jonni Lundy · 2023-03-07 · via Resend RSS Feed

We are thrilled to announce the launch of our Managed Dedicated IPs.

So, what are dedicated IPs, when should you use them, and why are we so pumped up about them?

Understanding IP's and Email Sending

When it comes to email sending, an IP address is used to identify the server that is responsible for sending emails from a specific domain. There are two types: shared and dedicated.

Shared IP addresses are used by multiple domains to send emails and their reputations are shared. If one sender on the shared IP address sends spam, it can negatively affect the reputation of all the other senders on that IP address. However, shared IP addresses are typically more affordable and already “warmed up” by the other domains already sending emails on it.

Dedicated IP addresses, on the other hand, are used exclusively by one domain to send emails. This means that the sender has full control over their IP reputation, and their email sending is not impacted by other senders' activities. Dedicated IP addresses are typically more expensive than shared IP addresses, but they offer more control and better deliverability rates for high-volume senders.

For those that are sending a high-volume and need the reputation control, Resend now offers a Dedicated IP add-on.

"Our team loves Resend. It makes email sending so easy and reliable. After we switched to Dedicated IPs, our deliverability improved tremendously and we don't hear complaints about emails landing on spam anymore."

The Benefits of Dedicated IPs

Now, let's dive into the benefits of dedicated IPs.

1. Increased Deliverability

With dedicated IPs, you have more control over your sender reputation. When you share an IP with other companies, their actions can negatively impact your deliverability. By using a dedicated IP, you reduce the risk of your emails going to spam due to someone else's actions.

2. Improved Sender Reputation

As mentioned earlier, dedicated IPs give you complete control over your sender reputation. You can send emails at your own pace, control all inputs into your sender reputation, and ensure that all emails coming from your IP complies with industry standards. All of these factors contribute to building a strong sender reputation, which is critical for email deliverability.

3. Increased Security

With a dedicated IP address, you have full control over your email sending activities and can ensure that your emails are not being mixed with other senders' emails. This provides full isolation down to the server level.

The Big Drawback (IP Warming)

Usually when you purchase a dedicated IP you are required to follow a process called “IP warming” which is a multi-week process of incrementally sending more emails each day until the new IP address is warmed up, which can take weeks to months. This is because your new IP address has no reputation and if you start sending thousands are millions of emails, many inbox providers may flag your IP as concerning because its unknown.

We don’t think this experience is very pleasant, so we provide Managed Dedicated IP pools. We handle all the IP warming in the background so when you receive your dedicated IP from Resend, you can immediately start sending at scale.

"I've used Mailgun, Sendgrid, and Mandrill and they don't come close to providing the quality of developer experience you get with Resend."

Deliverability for All

You may be thinking: “I’m not a high-volume sender but I still want incredible deliverability”.

The good news is that though dedicated IP’s are a powerful piece of the deliverability puzzle for high-volume cases, any user can achieve the legendary deliverability on our shared IP’s.

Many senders find their deliverability improves more from Resend’s high-quality shared traffic than from the isolating of a dedicated IP.

Both shared and dedicated IPs get our full deliverability attention. This means aggressive measures to protect from spamming, bouncing, and malicious actors, but also white-glove support from our team to enable you towards best practices.

Get Your Own IP

Want to get started with a dedicated IP for your domain?

You can request it as an add-on on your account today.