IP Warming: How to Warm Up a New Dedicated IP

IP Warming

IP warming is gradually increasing send volume on a new dedicated IP address so mailbox providers build a positive reputation for it before you send at full volume.

When you need it

IP warming applies when you're on a dedicated IP, common at higher volumes. On a shared IP, the provider manages reputation across many senders, so there's no separate IP to warm. A new dedicated IP has zero history, so the same gradual-ramp logic as email warm up applies, tied to the IP rather than the domain.

The ramp

Start with a few hundred sends a day to engaged recipients and roughly double every few days, watching for bounces and spam placement, until you reach target volume over two to four weeks. Sudden jumps read as spam.

How Nitrosend handles it

Nitrosend's warmup enforcement is tied to sending domain age with per-plan daily caps, and phased sending spreads large campaigns across days automatically. Every send is gated on health, so the ramp is enforced rather than left to a spreadsheet.

FAQ

What is IP warming?

Gradually increasing send volume on a new dedicated IP so mailbox providers build a positive reputation for it before you send at full volume.

Do I need to warm up a shared IP?

No. On a shared IP the provider manages reputation across many senders. IP warming applies to dedicated IPs you control.