Your IP. Your reputation. No exceptions.
Every SendKit account sends from its own dedicated IP address. Your deliverability depends on your sending behavior alone, not on what some stranger on a shared plan did last Tuesday.
Lambda Group
Your reputation, fully isolated.
Nobody else's sending practices can affect your deliverability. Period.
Dedicated IPs aren't an upsell or add-on. They're part of the infrastructure from day one.
Each mailbox permanently maps to the same IP through hash-based assignment. No random rotation.
Accounts can have multiple dedicated IPs, each with its own set of permanently assigned mailboxes.
One IP per account, no exceptions.
The moment you create your account, SendKit provisions a dedicated IP that belongs only to you. No sharing, no pooling.
Each mailbox gets permanently mapped to a specific IP through a hash-based assignment. Your mailboxes always send from the same IP, keeping reputation signals consistent.
Good hygiene means good deliverability. Bad lists mean bad deliverability. Either way, it's entirely on you, not on a random stranger's spam blast.
Give each client their own IP. When one client tests an aggressive angle, the others don't feel a thing.
Security teams want to know exactly which IP sent which email. Dedicated IPs with sticky assignment make audit trails simple.
Running dozens of mailboxes? Each one maps permanently to the same IP, so reputation builds consistently over time.
No shared IPs, no shared risk.
Dedicated IPs on every plan, not just enterprise
Most cold email platforms lock dedicated IPs behind their enterprise tier or don't offer them at all. SendKit includes dedicated IPs on every plan, from Starter to Power. Reputation isolation shouldn't depend on your budget.
Shared IPs are a gamble with your inbox placement
On shared infrastructure, your emails leave from the same IP as hundreds of other accounts. One spammer in the pool triggers a blacklisting, and suddenly your carefully written cold emails land in spam. You did nothing wrong. You just shared an IP with someone who did. Dedicated IPs eliminate that risk entirely.
Multi-IP support with permanent mailbox mapping
SendKit supports multiple IPs per account with a sticky hash assignment system. Each mailbox is permanently mapped to the same IP, so reputation signals stay consistent. IPs aren't rotated automatically. This is intentional. Consistent IP-to-mailbox mapping gives ESPs a clean, predictable sending pattern to evaluate.
Got questions? We've got answers.
Yes. Every SendKit plan includes a dedicated IP at no extra cost. It's a core part of the infrastructure, not a paid upgrade.
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Dedicated IPs on every plan. Cancel anytime.