Blacklist Check

The common causes: a compromised website or mailbox on your server sending spam, a misconfigured contact form being abused, missing authentication (SPF/DKIM) making you look like a forger, or inheriting a previously-abused IP from your host. On shared hosting you can be listed for a neighbor's sins — the whole IP carries the reputation.

Fix the cause first — delisting without stopping the spam source gets you relisted within hours, often with a longer penalty. Then request removal through the specific list's process: Spamhaus and Barracuda have self-service forms; some lists auto-expire listings after days-to-weeks of clean behavior. Each list is independent; there is no delist-everywhere button.

Self-service lists typically clear within hours to a day of a valid request. Auto-expiring lists (like UCEPROTECT level 1) drop you after roughly a week of clean traffic. High-impact lists like Spamhaus act fast when the evidence shows the problem is fixed — and equally fast in relisting when it isn't.

No. A Spamhaus listing effectively stops your mail at most major providers; smaller or aggressive lists (some UCEPROTECT levels, obscure regional lists) are consulted by few servers and can be safely deprioritized. Seeing yourself on one minor list with clean results elsewhere is usually noise, not crisis — the tool shows which is which.

DNSBLs primarily affect email delivery. However, domain-based lists (like Spamhaus DBL) and separate systems like Google Safe Browsing do affect web reputation — browsers may warn visitors and security filters may block links to your domain. A domain listing alongside a clean IP usually points at a hacked or abused website rather than a mail problem.