Enter the sending IP address of your mailserver or the domain you want to check.
Auto detect tries to determine if the input is an IP address or a domain.

What is a Blacklist / DNSBL Check?

DNSBL Databases

DNS-based blacklists (DNSBL/RBL) list IP’s or domains known for sending spam or malicious traffic.

Email Deliverability

Being listed on one or more blacklists can hurt your email deliverability and cause messages to land in spam.

Reputation Monitoring

Use this tool regularly to monitor your IP/domain reputation and quickly detect issues with your mail setup.

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