And it will continue to work that way. That is the quality work of the people who spend many man-hours putting together such a system that is robust enough that when i decide that when you send me e-mail (not via a list) from a host that has no reverse dns, i can easily flag that for further scrutiny. What you are missing here is that, while yes, you can send e-mail from root@[1.2.3.4] to people, they may say "hmm, e-mail from an ip address is not typical of the people that i communicate with", and therefore treat it differntly. just like policy-routing but for your mailbox. it is a good reflection of provider clue(tm). even if they have rev-192.168.0.1.example.com. as their reverse dns, it's slightly more responsible (imho) than nothing/nxdomain. - jared On Tue, Jun 18, 2002 at 05:48:29PM -0700, Patrick Thomas wrote:
Hi - what if I don't _want_ a domain name ? Last time I checked all of the standard Internet protocols worked just fine with just an IP - thank you for imposing your own sense of expediency and "convenience" on me and then arbitrarily breaking the network for me when I choose not to participate.
--PT
On Tue, 18 Jun 2002, Jared Mauch wrote:
On Tue, Jun 18, 2002 at 04:54:54PM -0500, Stephen Sprunk wrote:
Thus spake "Stephen Griffin" <stephen.griffin@rcn.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 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 jared@puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine.
-- Jared Mauch | pgp key available via finger from jared@puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine.