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Frequently Asked Questions

How did I end up on your blocklist?

The four main ways to get you listed on one of our blocklists; include:

  • Spam trap hits
  • Heuristics
  • Honeypot hits
  • Policy

What was the root cause of the blocklisting?

The most common causes are:

  • You don’t confirm opt-in to your mailing lists or have anti-bot mechanisms to prevent automation from adding recipients.
  • Broken or missing bounce or engagement management.
  • Email lists purchased from a 3rd party or use of any email appending services.
  • Sending mail to very old customers or any address with whom you have had no interaction for > 2 years.
  • Compromised accounts or services
  • Infected computers or devices.

Watch our webinar, “Blocklist ABC” where we cover the basics of blocklists

Why do I have to create an account to perform a delist?

Unfortunately, anonymous delistings attract abuse; therefore, you’ll need to confirm your email to delist.

Watch this video for more information.

Do I need to trial Abusix Mail Intelligence to delist IPs/domains?

No, there is no need to sign-up for a free 14-day trial! This is a stand-alone service, though it is directly connected to our product Abusix Mail Intelligence as it uses the same data source.

I want to delist. Will I need to upgrade to one of your plans?

Delisting is free, but you do need to create an account to delist.

How do I delist an IP or domain at Abusix?

Don’t panic – we’re not interested in penalizing you; we want to get the problem fixed and delisted ASAP. If you have received a “bounce message” stating that Abusix Mail Intelligence has rejected your message, this will usually include a clickable link, e.g., https://lookup.abusix.com/search?q=x.x.x.x – If you click on the link, it will show you which lists you are listed on.

  1. Either click the link in your bounce message or go directly to our Lookup and Delisting page.
  1. Enter the listed IP/domain.
  1. If the IP/domain shows as being listed, read the information provided and hit the button: “Sign-up for free” to get access to our user portal
  1. Either create a new account or log in to your existing account
  1. Follow the instructions within the portal to remove your IP/domain from the blocklists.

My IP doesn’t show as being listed. Is it expired?

The item you are looking up might not appear as listed, as it has already expired or has already been delisted by someone else. Note: Listings usually expire 5.2 days after the last bad event we’ve seen.

Why am I getting bounce notifications?

If your IP/domain is listed, you will receive a “bounce” message telling you your message could not be delivered. You will see a link to our Lookup and Delist service, where you’ll see details of the listing(s). Once you have fixed the issue, you can request a delist /removal. For more info on bounce messages, read this blog post.

How does delisting work?

When you request a delisting, we process the delist immediately by removing the offending item from the relevant list(s).

How long does it take for the delisting to work?

Delists are processed by us immediately, so DNS queries are immediately impacted.

Our DNS zone files for RSYNC are rebuilt every minute. But, it can take up to 5 minutes before the item is removed from the cache at our customers who RSYNC, and you stop seeing bounces.

Do you provide a Feedback Loop (FBL) for block listings?

No, we don’t provide a Feedback Loop.

Can I get my IP address or domain whitelisted?

We only add entities to our welcome list that meet the following criteria:

  • The IP address or domain name listed is shared among many other customers.
  • You have a published SPF record that only contains SMTP server addresses.
  • There have been repeated listing issues.
  • All the issues seen have been sufficiently resolved, and procedures have been put in place to prevent these from happening again.

Learn more about Lookup and Delisting



Send us a message

Having trouble with your setup or a technical issue? Get in touch with our team of Abusix experts.

Click the chat button at the bottom and send us your questions. Alternatively, you can email us at support@abusix.com


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