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Email Blacklist Check.
Emails bouncing or landing in spam? Check whether your domain or mail server is on a spam blacklist, and whether SPF, DKIM and DMARC are set up.
Checks: Spamhaus · SURBL · URIBL · SpamCop · PSBL · Mailspike · UCEPROTECT · SPF · DKIM · DMARC
Enter your email domain above to see the report here.
Why it happens
How businesses end up blacklisted.
Almost never from sending “spam” on purpose. Usually one mailbox password is stolen, or a website contact form is abused, and thousands of junk emails go out in your name overnight.
The usual causes
- A hacked mailbox
- An abused website form
- Missing SPF, DKIM or DMARC
- An old, unpatched mail server
- Bought or outdated mailing lists
The fix is the same order every time: stop the source, secure the account, set up email authentication, then request delisting.
Questions
Frequently asked
- How do I know if my domain is blacklisted?
- Enter your email domain above. The tool checks domain blocklists such as Spamhaus DBL, SURBL and URIBL, and IP blocklists such as Spamhaus ZEN, SpamCop and UCEPROTECT for your mail servers.
- Why are my emails going to spam if I’m not blacklisted?
- Most often because SPF, DKIM or DMARC is missing or wrong, so receiving servers can’t confirm the email is really from you. Content, sudden volume and shared sending IPs also play a part.
- How do I get removed from a blacklist?
- First fix the cause, usually a hacked mailbox, a compromised website form or a misconfigured server. Then request removal on each list’s own website. Listings come back quickly if the cause isn’t fixed.
- What is a sending IP and where do I find it?
- It’s the address of the server that sends your email. Open a message you sent, view the original or the headers, and look for the first “Received: from” line with a public IP. It’s optional: the tool also checks your mail servers automatically.
- Why does it say “Couldn’t check” for some lists?
- Some blocklists, including Spamhaus, refuse lookups that come through public DNS services. We show those honestly instead of guessing; use the “Look up” link to check on the list’s own site.
- Can you fix it for me?
- Yes. We find the cause, set up SPF, DKIM and DMARC correctly, secure the affected mailbox or server and handle delisting requests, usually the same day.
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