Re: no response from listmaster

From	Lee Fuller <leefuller23@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: no response from listmaster
Date	2015-12-14 15:10 +0100
Message-ID	<qFBZ7-7d6-1@gated-at.bofh.it> (permalink)
References	<qFrn3-8oD-5@gated-at.bofh.it> <qFyeT-4Fp-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hey there,

I checked your email address using basic telnet and a measurement tool.

I identified the likely physicality of your mailbox to be Cincinnati, and
the server connecting to you in these measurements is in Texas.

I ran the test in a handful of arrangements but I repeated the general
routine enough times intentionally to discount causes of likely performance
fluctuation.

In both tests it is clear that an *SMTP transaction takes as long as
10 seconds *to conclude, and that is using plaintext SMTP without actually
having transferred anything more than a formal greeting of machines.

I doubt a list server of this size is configured to wait anywhere near 10
seconds before considering an address unreachable.

That's probably the cause of your issues as you describe them.



-
- Lee Fuller

On 14 Dec 2015 9:25 a.m., <tomas@tuxteam.de> wrote:

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> On Mon, Dec 14, 2015 at 02:46:43AM +0000, Steve Kleene wrote:
>
> [...]
>
> > I am running mailto/sendmail from the command line, configured locally by
> > /etc/sendmail/sendmail.cf.  This file includes:
> >
> >   DSsmtp.uc.edu
> >
> > This sets my employer's server smtp.uc.edu as SMART_HOST.  I did not
> route
> > through that server until 2006.  At that point an organization across the
> > street began refusing emails because my IP was seen as dynamic.  I had to
> > route through smtp.uc.edu to get around that.  I haven't tried lately
> to go
> > back to the pre-2006 system.  I do have one machine with a fixed IP.  On
> my
> > desk machine I masquerade to the fixed IP, but apparently e-mails from
> the
> > desk machine were detected as dynamic IP before the header was even
> checked.
>
> That sounds like a lot of guesswork. Note that the spam [1] protection
> strategies are extremely varied these days, ranging from "I only accept
> mail from a couple of well-known sites" to DKIM [1] or SPF [2] and a
> whole zoo of other measures which don't really work (half of the spam
> I get has a DKIM, which suggests that some filters are spoofed by it).
>
> Perhaps the DKIM record of your uni doesn't list your IP address as one
> allowed to send mail from this domain?
>
> Other criteria are the domain's reputation and RBLs. The first mail I
> sent to a friend on outlook.com (I maintain my own mail server) never
> arrived (no bounce, no nothing: it just disappeared). Once she sent
> me a mail, "the channel was open".
>
> Spam filtering is hard.
>
> Add to this that the "biggies" don't dislike the situation that people
> have to turn to them to be able to reliably send mail, and then you
> see why they take half-hearted measures which generate "some" collateral
> damages. It's disgusting: mail, as a true peer-to-peer communication
> medium is dying thanks to spam, and thanks to the likes of Microsoft,
> Yahoo, Facebook, Google, Twitter et al.
>
> As if they were allies.
>
> So if you want still to send mail from your own IP, you'll have to
> know a bit about spam.
>
> Another thing: don't be impatient with the Debian listmasters. They're
> doing volunteer work. They deserve our appreciation. And if things
> don't work as they should, perhaps offering our hand is better than
> venting our ire.
>
> Cheers
>
> [1] Yes, counter to your suggestion in another mail I do mention the word
>     "spam", because you can't explain the current situation without that.
> [2] https://en.wikipedia.org/wiki/DomainKeys_Identified_Mail
> [3] https://en.wikipedia.org/wiki/Sender_Policy_Framework
> [4] https://en.wikipedia.org/wiki/DNSBL
>
> - -- tomás
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Thread

Re: no response from listmaster Steve Kleene <skdeb@syrano.acb.uc.edu> - 2015-12-14 03:50 +0100
  Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-14 04:50 +0100
  Re: no response from listmaster Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-14 05:00 +0100
    Re: no response from listmaster <tomas@tuxteam.de> - 2015-12-14 10:40 +0100
      Re: no response from listmaster Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-14 15:10 +0100
        Re: no response from listmaster tomas@tuxteam.de - 2015-12-14 15:30 +0100
          Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-14 16:10 +0100
            Re: no response from listmaster Ric Moore <wayward4now@gmail.com> - 2015-12-14 16:30 +0100
            Re: no response from listmaster <tomas@tuxteam.de> - 2015-12-15 09:00 +0100
              Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-15 12:10 +0100
                Re: no response from listmaster <tomas@tuxteam.de> - 2015-12-15 12:30 +0100
                Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-15 12:40 +0100
                Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-15 12:40 +0100
                Re: no response from listmaster German <gentgerman@gmail.com> - 2015-12-15 12:50 +0100
              Re: no response from listmaster John Hasler <jhasler@newsguy.com> - 2015-12-15 15:10 +0100
    Re: no response from listmaster Dan Ritter <dsr@randomstring.org> - 2015-12-14 15:30 +0100
      Re: no response from listmaster Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-14 15:50 +0100
        Re: no response from listmaster <tomas@tuxteam.de> - 2015-12-15 09:00 +0100
          Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-15 12:10 +0100
            Re: no response from listmaster Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-15 17:50 +0100
              Re: no response from listmaster Brian <ad44@cityscape.co.uk> - 2015-12-15 20:40 +0100
                Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-16 00:20 +0100
                Re: no response from listmaster Lee Fuller <me@leefuller.io> - 2015-12-23 20:10 +0100
                Re: no response from listmaster Steve Kleene <skdeb@syrano.acb.uc.edu> - 2015-12-23 21:50 +0100
                Re: no response from listmaster Lee <me@leefuller.io> - 2015-12-23 22:10 +0100
                Re: no response from listmaster Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-24 02:30 +0100
                Re: no response from listmaster Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-16 00:20 +0100
        Re: no response from listmaster Jonathan Dowland <jmtd@debian.org> - 2015-12-15 10:20 +0100
  Re: no response from listmaster <tomas@tuxteam.de> - 2015-12-14 11:10 +0100
    Re: no response from listmaster Lee Fuller <leefuller23@gmail.com> - 2015-12-14 15:10 +0100
      Re: no response from listmaster Darac Marjal <mailinglist@darac.org.uk> - 2015-12-14 15:40 +0100
        Re: no response from listmaster Lee Fuller <leefuller23@gmail.com> - 2015-12-14 17:50 +0100
  Re: no response from listmaster [SOLVED] Steve Kleene <skdeb@syrano.acb.uc.edu> - 2015-12-14 16:30 +0100

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