Dedicated IP
A dedicated IP is an email sending IP address assigned to a single account or organization. Unlike shared IPs where multiple senders share reputation, a dedicated IP means your sending reputation is entirely determined by your own email practices. Dedicated IPs require warmup and consistent volume to maintain good reputation.
Dedicated IP vs Shared IP
Dedicated IPs make sense at high volumes (typically 100K+ emails/month) where you can maintain consistent sending patterns. Below that threshold, shared IPs managed by a good provider often deliver better results because the reputation is pooled across many good senders.
Reputation isolation is a modern alternative to dedicated IPs. Instead of giving each customer their own IP, the provider isolates reputation at the sending domain or organizational level, achieving the same protection without the cost and warmup burden of dedicated IPs.
Related Terms
Shared IP
An IP address used by multiple senders, where reputation is pooled across all users.
IP Reputation
The trustworthiness score assigned to an IP address based on its email sending history.
IP Warmup
Gradually increasing sending volume on a new IP address to establish a positive reputation.
Reputation Isolation
The practice of separating sender reputation to prevent one sender's bad practices from affecting others.
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Transmit handles authentication, warmup, and reputation isolation automatically.