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isolated infrastructure

Your sending environment is completely separate.

Every SendKit account runs on isolated infrastructure. Your IPs, your sending, your reputation — none of it is shared with other users on the platform.

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full isolation

Zero cross-contamination by default.

Complete environment isolation

Your servers, IPs, and resources are fully separate from every other account on the platform.

Zero cross-contamination risk

Another user getting blacklisted has absolutely no effect on your sending.

Data separation

Your lead data and email content never coexist with other accounts' data.

Consistent inbox placement

Your results depend on your practices. Not the platform's average sender quality.

environment design

Separate servers for every account.

Isolated from day one

When you create your account, your sending environment is fully separate from every other user on the platform. No shared resources.

Hard boundaries between accounts

Your emails, lead data, and sending infrastructure sit behind strict isolation boundaries. There's no crossover with other accounts.

Metrics that reflect reality

Your bounce rates, engagement numbers, and spam complaints are 100% your own. No noise from other senders on the platform.

Agencies with multiple clients

Client A runs a risky experiment. Client B has a Fortune 500 campaign going. On shared platforms, A drags B down. On SendKit, they don't even know each other exists.

Regulated industries

Finance, healthcare, and legal teams need to prove their email infrastructure is isolated from other parties. SendKit makes that easy to demonstrate.

Mission-critical campaigns

Your biggest deal of the quarter depends on this email landing in inbox. You can't afford to share infrastructure with an unknown sender.

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architecture matters

Shared platforms hide a costly weakness.

The real reason agencies switch from shared platforms

Shared infrastructure is the hidden weakness of most cold email platforms. Your account routes through the same servers as every other user. When someone else gets flagged, your deliverability can take the hit too. SendKit isolates every account by default. It's not a premium tier feature.

vs Instantly
SendKit
vs Smartlead
SendKit
vs Lemlist
SendKit

What "shared infrastructure" actually costs you

Most cold email tools pool users onto shared servers and IP ranges. When any account in that pool buys a bad list, hits spam traps, or gets reported, the entire pool takes a reputation hit. Your inbox placement drops for reasons completely outside your control. You can write the perfect email and still land in spam because of a stranger.

True isolation means separate everything

SendKit doesn't just give you a dedicated IP and call it "isolated." Your account gets separate servers, separate IPs, and separate resources. There's no shared sending infrastructure between accounts. When we say isolation, we mean it.

frequently asked questions

Got questions? We've got answers.

It means your emails are sent from servers and IPs that no other SendKit user shares. Your sending environment is provisioned exclusively for your account, with separate resources across the board.

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Ready to hit primary?

Set up SendKit's isolated infrastructure and start sending in under 15 minutes.

Dedicated IPs on every plan. Cancel anytime.