IP listed at Spamhaus or UCEPROTECT, mail delivery broken
Listings come from sending behaviour: spikes, poor authentication, high complaint rate, or a compromised account sending spam. Before requesting delist you fix the source, otherwise you are back on the list tomorrow.
Try this first
- 1Identify listings via mxtoolbox.com blacklist-check or Spamhaus itself. Spamhaus SBL/CSS/PBL are impactful, UCEPROTECT level 1 is somewhat strict, levels 2/3 are often noisy.
- 2Investigate what went wrong: compromised account, old open SMTP relay, misconfigured newsletter, Microsoft complaint feedback.
- 3Fix the source first: password reset, MFA, enforce SMTP auth, clean mailing list, tighten SPF/DKIM/DMARC.
- 4Then submit a delist request at each list separately, explaining what happened and what you fixed. Spamhaus responds within 24 hours, UCEPROTECT clears after 7 quiet days automatically.
- 5Monitor IP reputation for the next 30 days and avoid sending spikes that re-trigger the listing.
When to bring us in
If you are stuck on multiple lists and freshly sent mail keeps bouncing, we can phase out the sender setup to a monitored relay.
See also
- Domain expires tomorrow and nobody saw the emailAn expired domain doesn't transfer instantly. There's a redemption window, but you pay extra.
- Unsure whether to enable auto-renewDisabling auto-renew only makes sense for domains you'll truly drop. For anything live, just keep it on.
- New registrar asks for auth code, can't find itEPP code or transfer code is the password to move a domain from registrar A to B.
None of the above fits?
Describe your situation below. We pass your input plus the steps you already saw to our AI and return tailored next-step advice. If it's too risky to DIY, we'll say so.
Or skip the DIY entirely
Our Managed IT clients do not look these things up. One point of contact, a fixed monthly price, resolved within working hours.