Dedicated IP Warmup
Dedicated IP Warmup is the algorithmic process of gradually increasing sending volume on a new dedicated IP address over 2 to 4 weeks to establish trust and sender reputation with major mailbox providers (Gmail, Yahoo, Outlook).
Extended Definition
When a brand sends large email volumes from a brand-new ('cold') IP address, major ISPs immediately view the sudden burst as suspicious spam activity and throttle or block messages. An algorithmic warmup gradually introduces the IP to ISP filters by sending small, highly engaged batches first (e.g. 500 emails on Day 1), doubling volume every few days while monitoring bounce and complaint rates until full production volume is achieved.
How It Works
CapEngage Imly ESP includes an automated Warmup Engine. Senders simply upload their list and activate the warmup schedule. The engine automatically segments the most engaged subscribers for early sends, paces hourly dispatches per ISP domain, and pauses or slows down the ramp if ISP deferrals or bounce spikes are detected.
Why It Matters for Enterprise Teams
Eliminates the #1 cause of new domain delivery failures and establishes an unblemished, long-term sender reputation.
Autonomous Execution in CapEngage
CapEngage automates dedicated IP warmup out of the box, allowing enterprise brands to ramp up multi-million monthly sending volumes smoothly in under 3 weeks.
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