On Thu, Jun 27, 2002 at 09:45:35AM -0700, Bart Schaefer wrote: | (I'm a bit sensitive about this right now as I just discovered that the | entire block of IPs that my new DSL provider uses, are in the DUL. And | there is no other DSL provider in this area, the last alternative is in | bankruptcy as of a few weeks ago.)
The DUL is just that -- "Dial-Up" List. It lists IPs that are dynamically assigned. (in theory at least) those people are "average" home users who signed up with some ISP to get "the internet". They are supposed to send mail out through their ISPs servers and won't even know what "SMTP" means. If you get an SMTP connection from such a machine, it is (probably) a hijacked windows system of some sort and you really don't want to be accepting the (spam/windows worm) mail from it. Of course, the whole basis for the list doesn't really hold up when you consider the (intelligent) unix users on those DSL lines who are capable of running their own mail service and should be allowed to. Nevertheless, the DUL isn't meant as a blacklist, just an informatiion list you (as a mail admin) can choose to do with as you like. FYI I'm not using the DUL in any way ATM (unless it's included by defualt in SA). If you use exim, I can give you a config sample to route through a smarthost only those addresses whose MXes won't take your SMTP connection directly. (I don't have rDNS here which is why I created that config) -D -- (A)bort, (R)etry, (T)ake down entire network? http://dman.ddts.net/~dman/
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