nanog mailing list archives

Re: Why do so few mail providers support Port 587?


From: "J.D. Falk" <jdfalk () cybernothing org>
Date: Tue, 1 Mar 2005 14:02:41 -0800


On 03/01/05, David Lesher <wb8foz () nrk com> wrote: 

Well, I'm no player in this league and ask...

      Why will ISP's ""wise up"" and block 587?

If 587 is always auth'ed; then there will be no spam splashback
provoking calls to block it. (Individual customers may get
zombied; but that's easy to track and treat...)

If a provider runs an open 587 port, and thus gets used as spam
source; they will soon meet Mr. Linford and/or Mr. SPEWS.

In either case, why will the clued ISP's want to block 587?

        I think the anti-587 logic here seems to be that we (we being 
        the Internet community at large) shouldn't encourage anyone to 
        ever act more responsibly than the worst operator because that
        worst operator will continue to be irresponsible.

        (I am only translating, not agreeing.)

        In any case, nobody has expressed any new ideas around this
        topic for about a week, so I'd suggest we let it drop before 
        somebody mis-represents Godwin's Law.

-- 
J.D. Falk                                          uncertainty is only a virtue
<jdfalk () cybernothing org>                    when you don't know the answer yet


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