Dedicated IP

Your own reputation, for better or worse. When that trade makes sense.

A dedicated IP is a sending address used by exactly one sender, so its reputation reflects that sender's behavior alone. The alternative is a shared pool, where many senders' mail, and many senders' mistakes, average into one collective reputation.

Why it matters

Isolation cuts both ways. On a dedicated IP, nobody else's spam can hurt you, delivery problems are unambiguously yours to diagnose, and attribution is clean when something goes wrong. But mailbox providers only trust IPs they see consistent volume from: send too little and the reputation never stabilizes, go quiet for a season and it decays. Small and bursty senders are usually better off inside a well-policed shared pool, riding a reputation that stays warm without them.

In practice

The common rule of thumb is steady volume around 100,000+ messages a month before a dedicated IP pays for itself; below that, the reputation is too thinly fed to be reliable. A new dedicated IP also arrives cold, so it needs warmup before it can carry full volume, and a seasonal sender may need to re-warm after a long gap. The honest framing: a dedicated IP is not an upgrade, it is a responsibility transfer. You gain control and inherit the consequences of every list-hygiene mistake that a shared pool would have diluted.

How Email Fast handles it

Email Fast offers both lanes: managed shared pools and dedicated IPs, with pool assignment matched to sending profile. Pools carry drift detection, so an IP whose health diverges from its group is flagged and rebalanced before it drags its neighbors down, and dedicated IPs go through the same health-gated warmup as everything else.