Email & Lifecycle

IP Warming

Gradually increasing email volume from a new sending IP address so mailbox providers can build trust and avoid filtering it as spam.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

IP warming is the practice of gradually increasing email volume from a new sending IP address over several weeks. Mailbox providers such as Gmail and Outlook judge senders by reputation, and sudden high volume from an unknown IP looks like spam. Starting with engaged recipients builds trust, protecting deliverability and inbox placement.