Internet and e-mail policy and practice
including Notes on Internet E-mail


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29 Nov 2010

Why DNS blacklists don't work for IPv6 networks Email

All effective spam filters use DNS blacklists or blocklists, known as DNSBLs. They provide an efficient way to publish sets of IP addresses from which the publisher recommends that mail systems not accept mail. A well run DNSBL can be very effective; the Spamhaus lists typically catch upwards of 80% of incoming spam with a very low error rate.

DNSBLs take advantage of the existing DNS infrastructure to do fast, efficient lookups. A DNS lookup typically goes through three computers, like this:

See more ...

  posted at: 00:13 :: permanent link to this entry :: 3 comments
Stable link is

17 Nov 2010

Melaleuca tries again Email

Last week I blogged about Melaleuca v. Hansen, a CAN SPAM case that was recently decided by an Idaho court. This week, they're back with a new case that is almost identical to the last one.

Last time, the court decided, among other things, that Melaleuca didn't have standing to sue because it contracts its mail service to an ISP called IP Applications, the ISP assigned its CAN SPAM clains to Melaleuca, but not until after filing suit, which the judge said was too late. This time, the claims are assigned before the suit started, so that particular defect is fixed, but all the other problems with the suit remain, most notably the absurd 9th Circuit rule that plaintiffs show specific harm from the specific messages they're suing about.

The only interesting bit of this case is the question whether the ISP can assign its CAN SPAM claims to someone else, which I believe has never come up before. I fear this may be another Gordon, a case with lousy facts that sets a precedent putting yet another needless hurdle in the way of subsequent reasonable CAN SPAM cases.

Venkat has a longer take on this suit, with comments about the procedural as well as substantive problems this suit has.

  posted at: 17:09 :: permanent link to this entry :: 0 comments
Stable link is

09 Nov 2010

My, that's secure Email
Back on October 21 I found some bogus charges on my credit card bill. So I called up the bank, had them taken off, and the bank changed my card number. They suggested I look at my credit report and put a fraud alert on it. I went to
annualcreditreport (the only one of many similarly named sites that is legitimate), and got my Equifax credit report.

See more ...

  posted at: 22:52 :: permanent link to this entry :: 5 comments
Stable link is

08 Nov 2010

Yet another unfortunate CAN SPAM case Email
The case Melaleuca v. Hansen has been moving slowly through Idaho federal court since 2007. On Sept 30 the court
decided in favor of the defendants. Although the outcome is probably correct, the court's decision perpetuates the misreading of CAN SPAM from the infamous Gordon case that makes it in practice impossible to win a CAN SPAM case in the 9th Circuit.

See more ...

  posted at: 23:48 :: permanent link to this entry :: 1 comments
Stable link is

05 Nov 2010

How not to get your mail delivered Email
A small company in suburban Philadelphia called
Holomaxx recently filed two lawsuits against large webmail providers, complaining that they weren't delivering mail from Holomaxx. The first suit is against Microsoft and Return Path, and the second suit is against Yahoo and Cisco/Ironport. Neither is going anywhere.

See more ...

  posted at: 00:38 :: permanent link to this entry :: 0 comments
Stable link is

02 Nov 2010

Why Spam Is Bad Email

Today's post on the CAUCE website lays out the reasons that spam is a real problem. It's not the annoyance of unwanted mail, it's the serious crime of which that mail is only a part.

(Kudos to Neil Schwartzman and JD Falk for writing it so clearly.)

  posted at: 11:30 :: permanent link to this entry :: 0 comments
Stable link is


My other sites

Who is this guy?

Airline ticket info

Taughannock Networks

Other blogs

It turns out you don’t need a license to hunt for spam.
63 days ago

A keen grasp of the obvious
Italian Apple Cake
621 days ago

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Coalition Against Unsolicited Commercial E-mail

Network Abuse Clearinghouse

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