[UA-EAI] EAI Evaluation - Phase 1

[John Levine]

> I've seen recent angst about DMARC on the IPv6 mailing list, but nothing against DKIM

Mailing lists only have problems with DMARC, not with DKIM.

The problem we're looking at in -009 through -011 is a fairly exotic one, 
MSAs that rewrite headers after signing.  The more typical path is that 
the message comes in, the MSA cleans it up (adds missing headers, rewrites 
obsolete syntax, etc.) and then signs it.  Any MSA that works that way 
should have no problems.

> -----Original Message-----
> From: UA-EAI <ua-eai-bounces at icann.org> On Behalf Of John Levine
> Sent: Tuesday, August 28, 2018 22:17
> To: Evan Hanson <evanh at catalyst.net.nz>
> Cc: ua-eai at icann.org
> Subject: Re: [UA-EAI] EAI Evaluation - Phase 1
>
> Hi again.
>
>>> EAI-MTA-009, -010, -011 If this means you expect MSAs to re-code
>>> addresses or headers on the fly, they should not unless you can
>>> verify that they didn't break DKIM signatures when doing so.
>>
>> Too true, I've added a note that DKIM should not be used for these
>> test cases if the software applies recoding.
>
> These days, if your MSA can't send mail with DKIM signatures, you're not going to get mail delivered.  Perhaps split the test so that either the MSA passes through incoming signatures, or it applies them after any transformations.
>
> Regards,
> John Levine, john.levine at standcore.com
> Standcore LLC
>
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>

Regards,
John Levine, john.levine at standcore.com
Standcore LLC