BounceProtect
Clean your email lists before you send
Check if your domain is blacklisted.
Check if your sending domain is listed on Spamhaus DBL, Barracuda, SURBL, or NordSpam. A blacklisted domain causes emails to land in spam or get blocked entirely.
What happens if your domain is blacklisted?
When your sending domain appears on a blacklist, email providers use that signal to route your messages to spam or block them entirely. Getting delisted can take days or weeks. BounceProtect monitors your domains automatically and alerts you before blacklisting affects your campaigns.
Enter a domain above to see results here.
Want to validate your whole list?
BounceProtect validates emails in bulk — SMTP, MX, catch-all detection, and company intelligence.
18.4M
emails validated this month
42,000+
domains protected
99.2%
accuracy on independent benchmarks
99.2%
accuracy on independent benchmarks
Frequently asked
When your domain appears on a blacklist, email providers use that signal to route your messages to spam or block them entirely. Getting delisted can take days or weeks and requires fixing the underlying cause first.
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Done with the generator?
Make sure none of your 10,000 contacts are about to bounce.
You just authenticated your domain. Now check the list you're about to send is clean. BounceProtect verifies email addresses in bulk — catch-all detection, SMTP validation, MX checks — before they damage your sender reputation.
87%
Average bounce rate reduction in first 30 days
12s
Average analysis time for a 10k list