A dedicated IP is an IP address assigned exclusively to your organization for sending email. Unlike shared IPs, no other sender's behavior affects your reputation on a dedicated IP. You have complete control over — and responsibility for — the IP's reputation. Dedicated IPs are recommended for senders doing 50,000+ emails per month and require proper IP warming before full-volume sending.
What Is a Dedicated IP for Email?
Dedicated IP: Full Control, Full Responsibility
A dedicated IP means you're the only sender using that IP address. Your IP reputation is 100% based on your own sending behavior — no other sender can drag it down (or prop it up).
Dedicated vs Shared
| Factor | Dedicated IP | Shared IP |
|---|---|---|
| Reputation control | 100% yours | Shared with other senders |
| Warming required | Yes (4-8 weeks) | No (already warmed) |
| Minimum volume | 50K+/month recommended | Any volume |
| Cost | $20-80/month per IP | Included in plan |
| Risk from others | None | Other senders can damage reputation |
For the complete comparison, read dedicated vs shared IP.
When Dedicated IPs Make Sense
Get a dedicated IP when:
- You send 50,000+ emails/month consistently
- You need reputation isolation between email types (transactional vs marketing)
- You've been affected by shared IP problems
- You need predictable, controllable deliverability
Stay on shared when:
- You send under 50,000/month
- Your ESP manages the shared pool well
- You can't commit to 4-8 weeks of warming
The Warming Requirement
New dedicated IPs have zero reputation. Mailbox providers treat unknown IPs with suspicion. You must warm the IP gradually:
- Start with 100-500 emails/day to your most engaged recipients
- Increase by 20-30% daily
- Monitor bounce rates, complaints, and deferrals
- Full warm-up takes 4-8 weeks depending on target volume
Skip warming and you'll hit immediate deferrals and spam placement. For the detailed schedule, see the IP warmup guide.
Practitioner note: The biggest mistake I see with dedicated IPs is companies that request one, send their full list on day one, get terrible results, and conclude dedicated IPs are worse than shared. They just skipped the warming process.
Practitioner note: For agencies managing multiple clients, I recommend separate dedicated IPs per client — or at minimum, separate IPs for each client's transactional and marketing email. One client's reputation problem shouldn't affect another.
If you're considering a dedicated IP, read the IP pools setup guide. For separating transactional and marketing streams, see transactional vs marketing separation.
Not sure if a dedicated IP is right for your volume? Schedule a consultation — I'll review your sending patterns and recommend the right IP strategy.
Sources
- SendGrid: Dedicated IP Addresses
- Mailgun: Dedicated IPs
- Google: Email Sender Guidelines
- M3AAWG: Best Practices for IP Warming
v1.0 · April 2026
Frequently Asked Questions
When should I get a dedicated IP?
When you send 50,000+ emails per month consistently. Below that volume, you may not generate enough sending data to build a strong IP reputation, and a shared IP with good senders can actually perform better. Some ESPs require 100K+/month for dedicated IPs.
Do I need to warm a dedicated IP?
Yes. A new dedicated IP has zero reputation. You must warm it by gradually increasing sending volume over 4-8 weeks, starting with your most engaged recipients. Sending full volume on day one will trigger spam filters and deferrals.
How much does a dedicated IP cost?
Most ESPs charge $20-$80/month per dedicated IP. SendGrid is around $40/month, Mailgun around $35/month. Some enterprise ESPs include dedicated IPs in higher-tier plans. The cost is minimal compared to the deliverability control it provides.
Can I have multiple dedicated IPs?
Yes. Many senders use separate IPs for transactional and marketing email, keeping reputation isolated. At high volume (500K+/month), multiple IPs let you manage IP pools and rotate sending to spread volume.
Is a dedicated IP always better than shared?
Not always. If you send low volume (under 50K/month), a well-managed shared IP pool often outperforms a dedicated IP because the shared pool has more volume and established reputation. Dedicated IPs only make sense with enough volume to maintain consistent reputation signals.
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