[asterisk-users] OT: Explain where mailing list bouncing comes from ?

Marcelo Terres mhterres at gmail.com
Sat Jun 17 10:14:45 CDT 2017


Yes, let's stop to use our gmail accounts because JUST THE DIGIUM
MAILING LIST is bouncing.

All other mailman servers must be wrongly configured, and the Digium
server is the only one that is correct. Perfect!

:-D
Marcelo H. Terres <mhterres at gmail.com>
IM: mhterres at jabber.mundoopensource.com.br
https://www.mundoopensource.com.br
https://twitter.com/mhterres
https://linkedin.com/in/marceloterres


On 16 June 2017 at 22:37, James B. Byrne <byrnejb at harte-lyne.ca> wrote:
>
> On Fri, June 16, 2017 12:28, Tim S wrote:
>
> Whether it is intentional or not these messages railing against the
> list operators has a decided tone of condescension which is not
> warranted.  The fact of the matter is that DMARC is broken by design
> and the unpleasant effects that adoption of it has on mailing-list
> traffic were well hashed out on the ITEF mailing lists before it was
> adopted anyway.  What was predicted there has come to pass.
>
> DMARC conflicts with the existing SMTP RFCs in several ways, none of
> which I will elaborate here but all of which may be discovered by
> perusing the relevant threads on the ITEF mailing lists.  Some mailing
> list management software, notably Mailman, since has been modified to
> 'work around' the problems with DMARC if so configured by the list
> owners.  But only at the cost of violating the SMTP RFCs themselves.
> Do not take my word for it.  Raise these issues on the Postfix mailing
> list and discover what response you get from Viktor and Wietse.
>
> The driving force behind DMARC was YAHOO's shoddy security of their
> own users' accounts.  With Hotmail and similar ilk close behind. It is
> a completely inappropriate, and in my opinion ill-thought-out,
> technical solution to what is essentially an internal security problem
> at some email providers, albeit very large ones.  In general it is an
> example of what is called 'externalising your costs'.
>
> The appropriate answer has been provided: lose the
> gmail/hotmail/yahoo/freemail account and administer your own domain
> for personal email. Configure the spf and dkim settings on your own
> domain as required to suit your needs and not those of someone else.
>
> --
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> James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
> Harte & Lyne Limited          http://www.harte-lyne.ca
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