Scan any IP or domain before you press send.
Run a blacklist check on any sending IP or domain from your dashboard. Results come back with a 0-100 health score so you know if you're clear or need to investigate before launching a campaign.
Lambda Group
Instant health score, no guesswork.
A single number that tells you where you stand, color coded for quick decision making.
Checks move from pending to checking to completed in seconds.
Check as often as you want. Daily, before every campaign, after every change. No fees, no caps.
Check both sending IPs and email domains. Cover your full sending infrastructure.
Ten-second scans that prevent disasters.
Pick the IP or domain you want to check. You can scan any sending IP or domain in your account.
SendKit checks your IP or domain against blacklists. The check moves from pending to checking to completed or failed.
Results come back with a score from 0 to 100. Green (90+) is clean. Yellow (70+) is caution. Orange (50+) has problems. Red (below 50) needs immediate action.
Make it part of your launch routine. A quick check can prevent thousands of emails from going out on a blacklisted IP.
Before adding a newly purchased domain to your sending rotation, check it against blocklists. Some domains come with existing listings from previous owners.
Open rates suddenly tanked? A blacklist check can quickly rule out (or confirm) whether a listing is the cause.
Unlimited checks, because caution is free.
Unlimited checks, because checking should be a habit
Some tools charge per blacklist scan or cap the number you can run each month. That discourages checking, which is exactly backward. SendKit includes unlimited checks on every plan so you can run one before every campaign without thinking about cost.
Color-coded scoring removes the guesswork
You shouldn't need to interpret raw data to know if your IP is in trouble. SendKit's health score is color coded: green means you're good, yellow means keep an eye on things, orange means you have issues to fix, and red means stop and deal with it before sending. The 0-100 scale gives you granularity when you need it.
A quick habit that prevents expensive mistakes
Sending from a blacklisted IP doesn't just waste those sends. It deepens the reputation damage. A quick pre-campaign check catches the problem when fixing it is simple. With unlimited checks, there's no reason to skip it.
Got questions? We've got answers.
It's a 0-100 score based on your status across checked blocklists. 90+ (green) is healthy. 70+ (yellow) is worth watching. 50+ (orange) has issues. Below 50 (red) needs immediate attention.
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Dedicated IPs on every plan. Cancel anytime.