From: alan Date: Tue, 10 Apr 2007 23:20:18 GMT Subject: Re: [OT] Re: Feature request - Subtree checkouts Message-ID: In-Reply-To: On Tue, 11 Apr 2007, Christer Weinigel wrote: > Linus Torvalds writes: > >> It's also possible to just not accept mail if the reverse lookup indicates >> that the sending IP address is a dynamic address, which you can sometimes >> see from the hostname. I would suggest you *not* name your hosts to >> contain a lot of numbers and the string "dhcp", for example ;) > > That would be a very bad idea I think. Doing that would lose quite a > lot of small companies and individuals such as me that run a mail > server but are unable to get the ISP to change the reverse DNS. For > example I do have a fixed IP, but have an reverse DNS pointer which > looks like 1-2-3-4-5a.foo.bar.bostream.se. I am in the same situation. I also have three domains. Which one do I pick? I can't afford to get an individual ip address for each. Virtual servers on a single ip also will have similar problems. > Forcing everybody to send mail through their ISP (and I'm not even > sure if my ADSL subscription includes such a service) would be a big > loss. First of all its a philosophical thing, I think that it's very > important that small shops or individuals should be able to control > the services they need, the internet is supposed to be peer to peer. > Second because the ISP's mess up a lot more often than I do, for > example Telia, one of the largest ISPs in Sweden have been having > massive mail server problems during the last week which I'm happily > unaffected by. My ISP only reciently started to think about using greylisting. They route all their mail through a filter service that I do not trust. (Too many false positives. I also expect that all this talk about "forking children" would get me on some list somewhere.) I have more experience running mail servers than the people at my ISP. (Not their fault. They are young.) -- "Invoking the supernatural can explain anything, and hence explains nothing." - University of Utah bioengineering professor Gregory Clark