Free online tool — Spam tool: instant results, no signup.
DNSBL (DNS-based Blackhole Lists) are databases of IP addresses and domains known for sending spam or malicious activity. Mail servers check incoming messages against these lists.
Common reasons for blacklisting:
If listed: 1) Remove the root cause (clean the site, change compromised passwords). 2) Submit a delisting request through the specific DNSBL's form. 3) Recheck after 24-48 hours.
Checking if your domain is blacklisted is a crucial step in maintaining your online reputation. There are several methods to perform this check, ranging from manual lookups to automated tools. Below are some effective ways to verify your domain status:
dig or nslookup to check DNSBL entries. For example, to check if your domain is listed on Spamhaus, you can reverse your IP and query:dig +short .zen.spamhaus.org SpamhausURIBLBarracudaBy employing these methods, you can efficiently determine your domain's blacklist status and take necessary actions.
Being blacklisted can have significant repercussions for your online presence. Here are some of the primary impacts:
To mitigate these risks, regular monitoring and prompt action are essential. Understanding the implications will help you prioritize maintaining a clean domain status.
If you discover that your domain has been blacklisted, taking swift action is crucial to restore your reputation. Here are the steps you should follow:
Address any underlying issues to prevent future occurrences.
By following these steps, you can effectively work towards removing your domain from blacklists and safeguarding your online reputation.
Being on a spam blacklist critically reduces email deliverability. The tool checks your server against major blacklist databases and provides delisting instructions.
Simultaneous check against Spamhaus, Barracuda, SURBL, URIBL, Invaluement and other databases.
Check both the server IP address and the sender domain — both affect deliverability.
For each blacklist we show a direct link to the delisting form and processing timeframes.
Save check results to track the dynamics of IP reputation over time.
email deliverability
mail server reputation
IP blacklist check
SMTP config verification
v=spf1 ... -all anyone can send emails from your domain. This is a guaranteed path to blacklisting.Spam check history and reputation monitoring for your domain and IP.
Sign up freeEnter your domain or IP into the form above. Enterno.io will check it against all major DNSBL and spam lists and display your status in each one.
Common causes: domain on blacklists, missing SPF/DKIM/DMARC records, high complaint rates, or sending to invalid addresses. Start with a blacklist check.
Each DNSBL has its own delisting procedure. Typically you fill out a form on the DNSBL's site, explain the issue, and describe corrective actions. Review takes 1-7 days.
Yes, checking your domain and IP against spam databases is completely free and requires no registration.
Free plan — 20 monitors, 5-minute checks, no card required. Upgrade for 1-minute interval and multi-region monitoring.