The deliverability stack, built in
Most platforms sell warmup, validation, and placement testing as add-ons. SendKit bundles the entire deliverability suite on every plan, on infrastructure that's yours alone.
Infrastructure
Dedicated IPs
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.
Isolated Infrastructure
Every SendKit account runs on isolated infrastructure. Your IPs, your sending, your reputation - none of it is shared with other users on the platform.
Human-like Warmup
SendKit warmup gradually builds your sender reputation by exchanging real emails with real accounts. Opens, replies, and spam rescues happen automatically. When health dips, warmup auto-adjusts volume and timing to protect your mailbox.
Monitoring
Mailbox Health Visibility
See which mailboxes are slipping. Pause them, run warmup, bring them back.
Bounce Tracking
SendKit records the delivery status of every email you send. Bounces are tracked per campaign and per mailbox so you can see exactly where problems are happening and which lists or mailboxes need attention.
Blacklist Monitoring
Continuous blacklist monitoring tracks every sending IP and domain on your account around the clock. When a listing appears, you get an alert before reply rates start moving. The point is not the scan itself but the time between listing and discovery.
Testing
Inbox Placement Testing
Send your email to seed accounts and find out where it lands: inbox, spam, or somewhere in between. SendKit shows you inbox rate, spam rate, and an overall score so you know if you're ready to launch.
Blacklist Check Tool
On-demand blacklist lookup for a single IP or domain. You type the address, you get back the listing status across every major blocklist with a 0-100 health score. Built for one-off verification, not background monitoring.
Email Validation
Every email address is validated automatically when you import leads. SendKit categorizes each address as deliverable, undeliverable, risky, or unknown with confidence scores so you can decide what makes the cut.
Ready to hit primary?
Set up SendKit's isolated infrastructure and start sending in under 15 minutes.
Dedicated IPs on every plan. Cancel anytime.