Where to go to see if my IP is blacklisted as a SPAM

Question

This has happened before and some mail servers will tell you that your IP has been blacklisted (RBL, CBL, etc) but I can't find that site to check anymore and searches result in a site that may or may not be legitimate.

Solution 1

MxToolbox has a web-based blacklist check tool that's a good starting point. The Domain Name System Blacklists (DNSBL) and Anti-Abuse Multi-RBL Check are other great free resources for this purpose.

DNSstuff also has a subscription based service called RBLalerts that will monitor 130+ blacklists for an IP address you specify and notify you if it has been listed or delisted. I haven't tried this service, but it might be worth a try if this issue is impacting your organization.

Solution 2

http://www.anti-abuse.org/multi-rbl-check/ is one

Although if an ISP is blocking you purely on RBL check then they need educating. You should never block purely on this as it can lead to a lot of false positives.

Solution 3

You should also check for yourself at rfc-ignorant.org. Being in their zones isn't being blacklisted, more like graylisted, but it doesn't help you any.

Comments

[Tony Meyer]

Although rfc-ignorant don't recommend blocking based on results from their service, that's totally up to the person using it, so it can indeed result in blacklisting (although that's generally a poor choice).

[bortzmeyer]

THere are many blacklists but only a few are so common that you cannot really ignore them if they blacklist you. Also, each blacklist may list you wrongly but if you find yourself in several serious blacklists, it may indicate a problem. So, I don't think you can just ignore the problem.

[bortzmeyer]

A vision quite idealistic of the world of black lists. In the real world, they are not all serious and even when they are "most of the time", innocent are sometimes listed.