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Re: ATTBI refuses to do reverse DNS?
- From: Jared Mauch
- Date: Tue Jun 18 20:46:06 2002
On Tue, Jun 18, 2002 at 04:54:54PM -0500, Stephen Sprunk wrote:
> Thus spake "Stephen Griffin" <email@example.com>
> > 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
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
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 Mauch | pgp key available via finger from firstname.lastname@example.org
clue++; | http://puck.nether.net/~jared/ My statements are only mine.