Bug#955339: tracker.debian.org: improper bounce-process

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Bug#955339: tracker.debian.org: improper bounce-process

Thomas Dickey-6
Package: tracker.debian.org
Severity: important

Dear Maintainer,

I'm the upstream developer/maintainer for several Debian packages, and get
(without problem) over a hundred messages per day.

   * yesterday, I received multiple messages from [hidden email]
     notifying me that my subscription was cancelled.

   * I resubscribed to the dozen or so packages which I'd subscribed to.
     That involves email confirmation, of course.

   * on the next activity (a followup for byacc) I _immediately_ received again
     multiple messages, cancelling all subscriptions.

     Bounce processing is supposed to involve retries.  That "immediately"
     tells me that there's something broken on Debian's end.

   * None of the messages provide useful information, aside from a summary
     message which lists the URLs which were cancelled.

     Other than that, there's no indication on why the bounces were triggered,
     nor any discernable way to repair the problem.

-- System Information:
Debian Release: 9.12
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Actually that's irrelevant :-)

Kernel: Linux 4.9.0-12-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

same here :-)

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Bug#955339: tracker.debian.org: improper bounce-process

Raphael Hertzog-3
Hello Tom,

On Mon, 30 Mar 2020, Thomas Dickey wrote:
>    * yesterday, I received multiple messages from [hidden email]
>      notifying me that my subscription was cancelled.

I saw them.

>    * on the next activity (a followup for byacc) I _immediately_ received again
>      multiple messages, cancelling all subscriptions.

Meaning that all the messages sent to you triggered a bounce over multiple
days. We have a system that is tolerant for occasional bounces but not for
systematic bounces.

>    * None of the messages provide useful information, aside from a summary
>      message which lists the URLs which were cancelled.
>
>      Other than that, there's no indication on why the bounces were triggered,
>      nor any discernable way to repair the problem.

Yes, there's no such feature. You're welcome to submit merge request
implementing the desired behaviour.

As far as you are concerned, here's a sample bounce that you are
generating. As long as you will be generating such bounces, there's
no point in trying to subscribe again.

----
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  tom@localhost


Reporting-MTA: dns; prl-debianold-64.jexium-island.net

Action: failed
Final-Recipient: rfc822;tom@localhost
Status: 5.0.0
----

Cheers,
--
  ⢀⣴⠾⠻⢶⣦⠀   Raphaël Hertzog <[hidden email]>
  ⣾⠁⢠⠒⠀⣿⡁
  ⢿⡄⠘⠷⠚⠋    The Debian Handbook: https://debian-handbook.info/get/
  ⠈⠳⣄⠀⠀⠀⠀   Debian Long Term Support: https://deb.li/LTS

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Bug#955339: tracker.debian.org: improper bounce-process

Thomas Dickey-2
On Mon, Mar 30, 2020 at 10:26:26AM +0200, Raphael Hertzog wrote:
...
> A message that you sent could not be delivered to one or more of its
> recipients. This is a permanent error. The following address(es) failed:
>
>   tom@localhost

I see (am investigating a fix).

--
Thomas E. Dickey <[hidden email]>
https://invisible-island.net
ftp://ftp.invisible-island.net

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Bug#955339: tracker.debian.org: improper bounce-process

Thomas Dickey-2
On Mon, Mar 30, 2020 at 07:24:48PM -0400, Thomas Dickey wrote:
> On Mon, Mar 30, 2020 at 10:26:26AM +0200, Raphael Hertzog wrote:
> ...
> > A message that you sent could not be delivered to one or more of its
> > recipients. This is a permanent error. The following address(es) failed:
> >
> >   tom@localhost
>
> I see (am investigating a fix).

...made a fix, and (for instance this report) am checking if there are
other scenarios.

The root cause for the problem that I can see in the logs is that exim4's
not using DNS to get domain names, just assuming that _any_ hostname is
a FQDN.

(fwiw, the relevant manpage uses hostname and domainname interchangeably).

--
Thomas E. Dickey <[hidden email]>
https://invisible-island.net
ftp://ftp.invisible-island.net

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