The 8086 Consultancy MSRBL Spam Realtime Blacklist (RBL) is an IP-based blacklist that contains hosts identified for sending emails that contain spam.
The 8086 Consultancy MSRBL Spam Realtime Blacklist (RBL) is an IP-based blacklist that lists hosts observed sending email containing spam. It operates under the zone name spam.rbl.msrbl.net. Unlike some other blocklists, MSRBL's policy is not necessarily to encourage the outright blocking of mail.
Instead, the operators state that their main goal is to provide a tool for mail server administrators to reduce the resources required to process email and check for malicious content. They provide a list of IP addresses that have sent spam, which administrators can use to inform their filtering rules. While it can be used to block mail, the operators suggest using it as part of a wider scoring system. This specific blacklist is one of several blocklists operated by MSRBL, each targeting a different type of threat.
This blacklist (or blocklist) is run by Chris Burton of 8086.net Consultancy, an IT consultancy based in the United Kingdom.
Removal from the 8086 Consultancy MSRBL Spam Realtime Blacklist (RBL) is an automated process. An IP address is automatically delisted 3 days after the last spam notification was received for it. There is no manual removal process required.
However, before waiting for the automated removal, it is critical to investigate and resolve the underlying issue that caused the listing. If you do not fix the source of the problem, your IP will likely be listed on this blocklist and others again.
The operators note on their website that you can use their database check tool to verify your IP's status.
The impact of being listed on the 8086 Consultancy MSRBL Spam RBL is generally considered to be low. This is primarily because the operators themselves advise mail server administrators not to use the list to block mail entirely. Instead, they recommend using it as part of a scoring system or to identify mail that requires more intensive scanning.
Because of this guidance, many systems that use this blacklist may not reject your email. They might, however, deliver it to the spam folder or subject it to additional scrutiny. While a listing on this specific blacklist may not cause a complete failure of email delivery, being on any blocklist is a negative signal that can harm your overall sender reputation.
Organization
Zone
Type
Impact
Delisting
Organization
Zone
Type
Impact
Delisting
Organization
Zone
Type
Impact
Delisting
Organization
Zone
Type
Impact
Delisting
19 resources
Besides Spamhaus, what blocklists are important for email marketers to monitor?
How effective are RBLs and blocklists for preventing spam in 2022?
How to troubleshoot a SURBL or blocklist listing for shared email infrastructure?
What are examples of insignificant or ineffective email blocklists?
What are the best and most trustworthy URL RBLs?
What is the PSBL (Passive Spam Block List) and how does it work?