Email Blacklist Checker
Enter your domain or sending IP to check against major email blacklists — with severity levels and one-click delisting instructions.
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About Email Blacklists
What is an email blacklist?
Email blacklists (also called DNSBLs or blocklists) are databases of IP addresses and domains known to send spam. ISPs and mail servers query these lists to decide whether to accept, filter, or block incoming mail.
How do I get blacklisted?
Common causes: spam complaints above 0.1%, sending to invalid/purchased lists, sudden volume spikes, compromised accounts sending spam, or sharing an IP with bad senders on a shared hosting plan.
How serious is being blacklisted?
It depends on which list. Spamhaus SBL/XBL blocks delivery at major ISPs including Gmail and Outlook. Smaller lists like SORBS may only affect a fraction of recipients. The checker shows severity for each.
How do I get delisted?
Most blacklists have a self-service delisting process. Fix the root cause first (stop the spam, remove bad addresses, check for compromise), then submit a delisting request on the list's website. Some process within hours; others take days.
Major Blacklists We Check
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Get Alerted the Moment You're Blacklisted
Manual checks are too slow — blacklisting can tank your deliverability within hours. InboxEagle monitors 100+ blacklists in real time and sends you an immediate alert with severity level and delisting steps.
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