After we switched to dedicated IPs, our deliverability improved tremendously and we don't hear complaints about emails landing in spam anymore.
Vlad Matsiiako
Co-founder of Infisical
Mailbox providers care more about your domain reputation than the IP behind it, so a dedicated IP only pays off for high-volume, consistent senders. For everyone else, a well-monitored shared IP delivers better from day one.
Most providers hand you a cold IP and a warmup spreadsheet. Resend provisions, warms, and maintains it for you.
Resend ramps your sending volume in the background to build IP reputation. Start sending at scale on day one, no waiting period.
We watch your IP reputation around the clock and flag issues before they reach the inbox, so deliverability stays predictable.
Your IP pool scales with your sending so you always have the capacity you need, even when volume spikes.
Available on the Scale plan and up, for senders sending more than 3,000 emails per day.
A dedicated IP is an IP address assigned exclusively to your sending. No other Resend customer sends from it, so its reputation reflects only your traffic. By default, Resend uses carefully monitored shared IP pools.
Most senders do not. Mailbox providers weigh your domain reputation more heavily than your IP, and a well-maintained shared IP delivers better from day one. A dedicated IP is worth it for high-volume senders with consistent, predictable sending who want full control. Still unsure? Read our guide or talk to our team.
A dedicated IP is a $30 / mo add-on available on the Scale plan and higher, for customers sending over 3,000 emails per day.
No. Resend provisions a clean, dedicated IP and warms it up automatically by gradually ramping volume in the background. There is no multi-week waiting period before you can send at scale.
A shared IP is used by multiple trusted senders, so you benefit from an established, already-warmed reputation. A dedicated IP is yours alone, giving you full control and isolation, but you are responsible for its reputation. Resend manages the warmup and monitoring either way.
No. Deliverability is driven mostly by domain reputation, authentication (SPF, DKIM, DMARC), list hygiene, and engagement. A dedicated IP gives experienced high-volume senders more control, but it is not a fix for underlying sending problems. Our deliverability experts can help you diagnose the real issue.
If you are on the Scale plan or higher and meet the volume threshold, contact our team and we will provision, warm, and monitor the IP for you. Not sure you qualify? We can help you decide.
Resend delivers mission-critical emails for some
of the fastest growing teams.