[erlang-questions] [meta] Messages not reaching the mailing list

[Raimo Niskanen]

On Sat, Aug 11, 2018 at 03:55:48PM +0100, Joe Harrison wrote:
> Hey everyone,
> 
> tl;dr it appears that the mailing list software is modifying message
> headers/bodies, leading to broken message signatures, ultimately causing

This is default mailing list behaviour since the dawn of the Internet.

> mail providers to outright *reject* some messages from the list.

This is a new behaviour caused by the DMARC project completely ignoring
mailing lists when they created their new nifty feature.

> 
> ---
> 
> Just a note to those that are having problems with their messages
> getting onto the mailing list.
> 
> The erlang-questions Mailman configuration seems to be breaking DKIM
> signatures, which means that messages from the mailing list will be
> marked as either spam or outright rejected depending on the DMARC policy
> of the original sender's domain.
> 
> Assuming this is the case, the mailing list owners need to read:
> 
> https://wiki.list.org/DEV/DMARC
> 
> and pick an option, while those sending from domains with strict DMARC

Unfortunately it is not enough to _read_ that document. ;-)

In this case "pick an option" constitutes of upgrading the mail server
machine OS, installing a newer Mailman that has got these options to pick,
configuring a new web server to handle the mailing list archives,
configuring a new mail server for the new Mailan, and re-implementing
the mail list archive address obscurification via .png pictures that
Mailman still has not implemented.  And then "pick an option".

While maintaining the real business...

Hopefully this will happen within a month or so.


> policies should temporarily send messages from a different domain.
> 
> Cheers,
> Joe
> 

-- 

/ Raimo Niskanen, Erlang/OTP, Ericsson AB