Developers of Sympa

[IKEDA Soji <address@concealed>]

Hi John, thanks for input.

I submitted an issue: https://github.com/sympa-community/sympa/issues/153

Please feel free to give suggestions and comments.

-- Soji

On 4 Jan 2018 20:54:40 -0500
"John R Levine" <address@concealed> wrote:

> ARC is the latest invention from the people who brought us DMARC.  As we 
> all know DMARC does bad things to mailing lists, so ARC is supposed to fix 
> or at least mitigate it. ARC adds a chain of signature headers similar to 
> DKIM signatures to mail messages that give a recipient system an idea of 
> the path a message took, so a sophisticated recipient (like, say, gmail) 
> can use to decide to disregard DMARC rejection advice.
> 
> I have recently added ARC support to the Mail::DKIM perl module which the 
> module's maintainer has checked in as version 0.50.  Adding ARC signatures 
> is pretty much the same as adding DKIM signatures, with the added detail 
> that list software needs to check for existing ARC signatures in messages 
> on the way in (before making any changes to the message) so it can link 
> new to old ARC signatures appropriately.
> 
> On my Sympa installation, for largely historical reasons I do ARC and DKIM 
> signing in shims in front of and behind Sympa rather than in Sympa itself. 
> But it would be a favor to Sympa users for Sympa to add ARC signatures 
> whenever it adds DKIM signatures.
> 
> Who should I talk to?  Tnx.
> 
> Regards,
> John Levine, address@concealed, Taughannock Networks, Trumansburg NY
> Please consider the environment before reading this e-mail. https://jl.ly


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