The Mail Baby Interserver Realtime URI Blacklist (URIBL) is a domain-based blocklist that lists domains found within spam messages, with removal from this blacklist being an automatic process that happens over time.
The Mail Baby Interserver Realtime URI Blacklist (URIBL), with the zone rbluri.interserver.net, is a domain-based blocklist. Unlike IP-based blacklists that list server IP addresses, this one focuses on listing domain names (URIs) found within the body of emails.
According to its policy, this blacklist (or blocklist) adds domains that are found in outgoing spam messages or emails sent to its spam traps. System administrators use this blacklist to identify and filter emails containing malicious or spammy links, preventing them from reaching the inbox. If your domain is on this list, it means it has been detected in the content of emails identified as spam.
This blacklist is operated by MailBaby. MailBaby is an email smart host that provides an outbound filtering service. Customers route their outgoing email through MailBaby's systems, where the messages are analyzed for spam-like content. Based on this analysis and a calculated score, emails are either sent on through a reputable sending channel or rejected as spam. MailBaby manages its own IP reputation, monitoring for blacklistings and using feedback loops to maintain high deliverability standards.
The Mail Baby Interserver Realtime URI Blacklist (URIBL) does not provide a manual delisting or removal request process. Removal from this blocklist is automatic.
Your domain will be automatically removed from the list after a certain amount of time has passed since spam containing your domain was last detected. Before you wait for the automatic delisting to happen, you should take the following steps to resolve the underlying issue:
The impact of being on the Mail Baby Interserver Realtime URI Blacklist (URIBL) is generally considered low. This means it is not widely used by major mailbox providers like Gmail or Microsoft, so a listing is unlikely to cause a widespread email delivery failure.
However, any blacklist is a signal that something is wrong. Some system administrators and smaller email providers may use this blocklist, which could cause your emails to be filtered or blocked by their systems. You should treat a listing as an important warning sign and investigate the root cause to protect your domain's reputation.
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