Tag: DNSBLs

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SORBS closing has been announced

I’ve heard rumors for a few days that Proofpoint was closing the SORBS (Spam and Open Relay Blocking System) DNSBL. Still, I had not seen any real confirmation until last night, when the list maintainer sent an email to the Mailop mailing list. So, I now feel comfortable posting that SORBS is closing over the Read More

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SBLs

On the fifth day of Listmas, my data showed to me: five SBLs… Coming up on Spamhaus’ radar is usually bad news. Unlike some stories that you might read on the Internet, Spamhaus won’t reach out to give you a Target gift card. Bob D’Angelo, ​Michigan police hand out Target gift cards for Christmas instead Read More

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Back to Basics: Where does Spamhaus get off…

One of the more popular questions that come up deals with ISPs1 using DNSBLs2, especially Spamhaus lists. The question usually goes something like this: Who are the operators of that list and what gives them the right to regulate commerce? Are they run by a government or something? A Brief History of DNSBLs The year is Read More

I Can’t Give You What You Want

Yesterday, I was talking with a potential client about engaging my services. The prospect asked for a guarantee of results with regard to a smallish blocking list, and left the telephone call unhappy because I would not do that. The reason that I, and indeed ANY email delivery consultant, cannot guarantee results seems obvious to Read More