North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: ATTBI refuses to do reverse DNS?
On Tue, Jun 18, 2002 at 04:54:54PM -0500, Stephen Sprunk wrote: > > Thus spake "Stephen Griffin" <[email protected]> > > The lack of clue tends to be on the providing in-addr side of > > things. I think it is a great thing to refuse connections from > > ips without in-addr, in the same way it is great to refuse mail > > from domains that don't provide postmaster addresses. > > On first reading, I thought that was sarcasm. Now I realize you're serious. I've found that filtering out mail from people that have no reverse dns tends to typically point to a) open-relays, b) spam, c) lack of working abuse/postmaster. > > It is a means through which one can influence the laziness of > > others. Simply disregarding what others do, only legitimizes > > the laziness, and continues us along the road of everyone > > doing the absolute minimum. > > ... > > You neglect to include the option of the customer changing > > to an ISP that provides in-addr. > > So, if you ran Amazon.com, you wouldn't accept money from customers of clueless > ISPs? You can't do it on the store side, but you can do it on the residental customer side, or at least give those messages a higher level of attention in any overall spam score for a message. > Sadly, even that level of coercion wouldn't be anywhere near enough to motivate > most ISPs. And your (non-)customers will be caught in the crossfire. Anyone that sends e-mail to me from a host/server with no reverse dns I will not see. It is not rejected w/ 400/500 series code as I know some people do. it goes to it's own 'spam' folder. I have found that some companies (american express) for example can not seem to make their systems have reverse dns, and they suffer from the lack of a working postmaster/hostmaster address too. It just means i read that folder once every few days and periodically send e-mail to people i know that have hit the filter or other legit folks. - jared -- Jared Mauch | pgp key available via finger from [email protected] clue++; | http://puck.nether.net/~jared/ My statements are only mine.
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