Email Blacklist Monitoring

Detailed information and dialogue on email blacklists.

SPEWS Blacklist Obsolete

The Spam Prevention Early Warning System (SPEWS) database has not, to our knowledge, been updated since August of 2006. Although our Email Blacklist Lookup Tool currently still checks the database, we plan to remove this check by the end of 2008 since it is clearly obsolete. The SPEWS database was created to list the IP addresses of ISPs that do not respond to issues with spammers coming from their network.

Intersil Blacklist Gone

We received word today that the Intersil blacklist is no longer in use, and have removed it from our lookup tool and email blacklist contact sheet.

If your email server is still using blackholes.intersil.net, you should remove it from your configuration.

Barracuda Reputation Block List (BRBL) Follow-up

Just wanted to let everyone know that our lookup tool now includes the BRBL from Barracuda. For email administrators who wish to use the BRBL directly (e.g. from within Microsoft Exchange, IBM Lotus Domino, sendmail, Postfix, and qmail, etc.) please note that you need to register your email server IP addresses directly with Barracuda Networks.

For users of our Email Blacklist Lookup Tool, we’ve taken care of the registration process for you. You just need to enter your Email server’s IP address in our tool to see if it is in the BRBL database.

Please let us know if you have any related problems or questions.

-Rob

New: Barracuda Reputation Block List (BRBL)

On October 2, 2008, Barracuda Networks announced the availability of theirĀ Barracuda Reputation Block List (BRBL) for free, general use by email admins. Their reasoning for introducing a new blacklist appears to revolve around their core spam filtering products, which allows them to automatically create and update the blacklist. This email blacklist is another database-oriented approach, where IP addresses that are perceived to have gone “bad” (e.g. originated spam) are automatically added to the database. Read the full BRBL press release here.

We will add the BRBL to our Email Blacklist lookup tool as soon as possible.

It’s Here! The Email Blacklist Blog

Due to the frequency and similarity of the requests we get on a variety of topics that affect email marketers (and especially email blacklists!), we’ve implemented The Email Blacklist Blog. Let us know about any topics that you’d like us to discuss or research for you, and help us to help you!

Thanks!

Rob
Email Blacklist Monitoring

  
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