The URIBL Multi Domain Name Blacklist is a composite blocklist that aggregates domains listed on URIBL's other blacklists (black, grey, and red) to provide a single, comprehensive check for domains associated with unsolicited email.
Check if you are listed on URIBL Multi Domain Name Blacklist
The URIBL Multi Domain Name Blacklist, with the zone name multi.uribl.com, is a composite domain name system blacklist (DNSBL). It combines several individual URIBL lists to provide a comprehensive check against a single zone. This blacklist is used by mail server administrators and spam filtering software, like the popular open-source SpamAssassin, to identify and block emails containing domains associated with unsolicited bulk or commercial email (UBE/UCE).
Its policy is to list domain names found in the body of spam messages. The multi.uribl.com zone is rebuilt whenever its component zones are updated, ensuring it contains the most current data. The component lists each have a specific focus:
black.uribl.com: This list includes domains exclusively used by spammers. It has a strict policy with a goal of zero false positives and is updated frequently as new data emerges.
grey.uribl.com: This contains domains found in unsolicited emails that might also operate legitimate services or honor opt-out requests. This blocklist can sometimes result in false positives, depending on an organization's definition of spam. It rebuilds multiple times per day.
red.uribl.com: This is an automated list for domains that are currently being monitored. It includes very new domains or those using WHOIS privacy services. This list should be used with caution due to its automated nature.
Technically, URIBL provides its data through Public DNS, RSS Feeds, and a Data Feed service for high-volume users.
Who runs URIBL Multi Domain Name Blacklist?
The URIBL Multi Domain Name Blacklist is operated by URIBL.COM. It is an independent project dedicated to distributing information about domain names as they relate to unsolicited email. While its goals are similar to other projects like SURBL, it is a completely separate entity. URIBL's data is intended to be a supplementary tool for existing anti-spam systems.
URIBL.COM focuses solely on maintaining its lists and does not have the authority to suspend domain names. However, some domain registrars may use URIBL's data to place holds on domains listed on the 'black' list. URIBL also does not handle domain registration or web hosting.
How do I get removed and delisted from URIBL Multi Domain Name Blacklist?
If your domain is on this blacklist, you must use the official lookup and submission form on the URIBL website to request removal. URIBL will not provide feedback on why a domain was listed, nor will they respond to delisting requests sent via email.
Before requesting to be delisted, you should ensure that any issues causing the listing have been fully resolved. The process is as follows:
Use the lookup tool on the URIBL website to confirm your domain's listing status.
You must register for an account on the URIBL website to submit a delisting request.
Once registered, use the same lookup form to submit your delist request. You can find the page to check your status and submit here.
What's the impact of being listed on URIBL Multi Domain Name Blacklist?
The impact of being on the URIBL Multi Domain Name blocklist is considered medium. Because it is used by default in widely deployed anti-spam solutions like SpamAssassin, a listing can cause significant email deliverability problems. Emails containing a domain on this blocklist are more likely to be filtered to the spam folder or rejected entirely by receiving mail servers.
The severity can vary depending on which sub-list the domain is on. A listing on black.uribl.com has the highest impact and can even lead to your domain registrar suspending your domain. Listings on the grey or red lists also negatively affect deliverability but are generally considered less severe.
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