On Wed, 2020-04-15 at 20:18 +0900, Charles Plessy wrote:
> as we discuss about proper quoting, I would like to take the opportunity
> of Ansgar's email to note that each time a line starts with "From" in a
> plain text email, something in the pipeline that delivers emails (at
> least to me) inserts a ">" sign, which is then misinterpreted as a
> quotation character.  See aboveā€¦

Hmm, indeed. And I was wondering what was breaking the DKIM
signature...

Looking at the headers of my mail I find:

| X-Amavis-Spam-Status: No, score=-12.6 required=4.0
|  tests=DKIM_INVALID,DKIM_SIGNED,

with an invalid signature, but below that (earlier in the pipeline)
this signature was still valid:

| X-Amavis-Spam-Status: No, score=-8.863 tagged_above=-10000 required=5.3
|  tests=[BAYES_00=-2, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1,

So it looks like the lists setup somehow breaks this...

I reported this problem as https://bugs.debian.org/956806

Ansgar

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