On Fri, Apr 21, 2017 at 10:40:42PM +0100, Kevin Chadwick wrote: > On Fri, 21 Apr 2017 09:21:48 -0700 > Kurt H Maier <k...@sciops.net> wrote: > > > Greylisting is a hack, an abuse of a side-effect. Most such > > approaches have deleterious side effects. This particular side > > effect is why I don't like greylisting in general, even though it's > > fairly effective. > > Do you answer your phone before looking at the number/caller?
In fact, there are some numbers I will not respond to (and these do not cause my phone to ring) and the rest I just answer. Just like having a blacklist I don't accept SMTP connections from at all, and the rest get processed normally. What I don't do it set an outgoing voicemail greeting informing correspondents that my time is more valuable than theirs, and if they want to contact me I have a list of hoops through which they must jump. That would make me an asshole. > It is not a hack at all. It is. SMTP is mandated to retry as a reliability factor, in a world with bad network connections and unreliable software. It is not mandated to retry so people can play cute games with the sending unit. I personally have no burning desire to see greylisting expunged from the internet, but I also have no sympathy for people who think it's a real solution to anything. If it works for someone, good for them, but I will never be even a little surprised when it becomes a pain in someone's ass. khm
