DEmail Deliverability Glossary

Dedicated IP

An IP address used exclusively by a single sender. Gives full reputation control but requires complete warm-up from zero before high-volume sending.

A dedicated IP address is an IP address used exclusively by a single sender — you. No other company shares this IP's reputation.

Dedicated IP vs. Shared IP:

	Dedicated IP	Shared IP
Reputation control	100% yours	Shared with others
Warm-up required	Yes — from zero	No — inherited reputation
Recommended for	High-volume senders (50k+/month)	Lower-volume senders
Risk	You own all mistakes	Others' bad behavior affects you
Cost	Higher	Lower / included

When to use a dedicated IP:

Sending more than 50,000–100,000 emails per month
You have high deliverability standards and don't want shared-pool risk
You are building a brand reputation tied to a specific IP

Warm-up requirement: A dedicated IP starts as a cold IP with zero reputation. It MUST be warmed up before high-volume sending.

Frequently Asked Questions

Do I need a dedicated IP for email warm-up?

Not necessarily. Dedicated IPs make sense for senders who will reach 50,000+ emails per month — at that volume the control over your reputation outweighs the complexity of warming up from zero. For lower-volume senders, a reputable ESP's shared IP pool often delivers better initial inbox placement than a cold dedicated IP. If you're using a dedicated IP, plan for a full IP warm-up (4–12 weeks) before reaching your target send volume. Running dedicated IP warm-up simultaneously with a warm-up network tool accelerates the process significantly.

Can I switch from a shared IP to a dedicated IP later?

Yes, but the switch requires starting a fresh IP warm-up. Your domain reputation carries over (that stays with your domain, not your IP), but the new dedicated IP starts with zero history. This means you'll need to ramp sending volume gradually on the new IP even if you've been sending reliably for months on the shared pool. Plan any IP switch to coincide with a lower-volume period in your calendar — switching right before a big campaign launch while still on a cold IP is a common mistake that leads to deliverability crises.

What is the warm-up timeline for a dedicated IP?

A typical dedicated IP warm-up to sustainable sending volume: Days 1–3: 50–100 emails/day. Days 4–7: 200–400/day. Week 2: 500–1,000/day. Week 3: 2,000–5,000/day. Week 4: 5,000–10,000/day. Month 2: Scale 20–30% weekly toward target volume. The exact pace depends on your domain reputation, content quality, and engagement metrics. If you see declining inbox placement rates or rising complaint rates at any stage, hold the current volume level for another week before increasing.

Related Terms

IP Warm-Up

The process of gradually increasing sending volume from a new IP address to build positive ISP reputation before scaling to full send volume.

IP Reputation

The trust score ISPs assign to a specific sending IP based on bounce rates, complaint rates, spam trap hits, and sending pattern consistency.

Shared IP Pool

A set of IP addresses shared among multiple senders through an ESP. Cheaper than dedicated IPs but your reputation is partially affected by other senders' behavior.

Cold IP

An IP address with no sending history. ISPs treat unknown IPs with maximum suspicion — sending high volume from a cold IP triggers immediate spam filtering.

Back to Glossary

Get Started Today

Stop Guessing. Start Landing in the Inbox.

Improve your email deliverability with real engagement signals and full visibility into where your emails actually land.

Start Free Trial Talk to Sales

Free 10-day trial · No credit card · Cancel anytime