Re: Why don't gnu.org and RMS sign mail?

[Dmitry Alexandrov]

Alexandre François Garreau <address@hidden> wrote:
> Le samedi 9 novembre 2019, 21:44:46 CET Dmitry Alexandrov a écrit :
>> In the light of yet another letter from your impostor, do you have any more 
>> unresolved questions, that impede you from starting to sign mail?  Feel free 
>> to ask them.
>
> Note signing can be avoided with effective spf policy.

No, it can not.  SPF has nothing to do with message headers.  Itʼs an antispam 
measure, that can help to detect fakes when one tries to fake a domain name of 
his _SMTP-server_ (e. g. claim that his 89.184.73.65 is not nvs406.mirohost.net 
but fencepost.gnu.org), but our impostor have not bothered to do it.

GPG can be avoided by choosing DKIM instead (+ optionally a DMARC policy), but 
this _is_ a cryptographic signature.

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