BounceProtect
Clean your email lists before you send
Look up MX records for any domain.
Check which mail servers handle email for any domain. MX records tell you whether a domain can receive email and which provider it uses.
What are MX records?
MX (Mail Exchange) records are DNS entries that specify which mail servers are responsible for receiving email for a domain. If a domain has no MX records, any emails sent to addresses at that domain will bounce immediately. BounceProtect checks MX records as part of every email validation.
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
MX (Mail Exchange) records are DNS entries that specify which mail servers are responsible for receiving email for a domain. Without MX records a domain cannot receive email and any address at that domain will bounce.
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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