BUT -- please correct me if I'm wrong, but it seemed as though this blocking
wasn't even necessarily by the use of a DSL line -- isn't it blocking by what a
company has decided to use as a *name* in their DNS entry (or reverse DNS
entry)?
Close. It seems that they are blocking on any reverse DNS entry with "dsl" in it (and likely others, such as "cable", "pool", etc.).
However, one of the biggest issues is that there are a lot of small businesses and organizations that have a business class connection using DSL, cable, or a 24x7 dialup connection, but do *not* have control over the reverse DNS entry. The RFCs (depending on how you read them) require a reverse DNS entry, but don't specify what it has to be or whether or not anyone should have control over it. As one person pointed out, though, AOL has the right to decide to block such E-mail.
My main reason for staying in the discussion wasn't to say that AOL is wrong; it was to dissuade others from following AOL's lead (by pointing out that 2.5% of our legitimate E-mail comes from mailservers with "cable", "dsl", etc. in the reverse DNS entries).
So that AOL/whoever is now trying to dictate naming conventions? If so, I really REALLY hate
this idea . . .
Agreed. I'm just glad that [1] Our IP doesn't have some of the more popular keywords in it, and [2] We send very, very little to AOL.
I *do* like the idea of coming out with a new RFC or de-facto standard to "force" Internet providers into either [1] Allowing vanity reverse DNS entries for all their business class customers, or [2] Distinguishing in the reverse DNS entry between residential and business accounts. But suddenly imposing this without any warning -- well, that just causes people to get upset. :)
-Scott
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