On 12/29/22 11:08, Polarian wrote:
Thats for the suggestion but DKIM is not the problem, I have inspected 1) You mentioned in your first post: in a select few cases the DKIM signature was tampered with according to the reports...
It was that phrase that I wondered if the earlier post on 7 bit mailers may be germane. 2) None of the posts I just looked at show any spf check at all once the message leaves lists.archlinux.org. Headers show archlinux mailer validated spf on your inbound message to archlinux (same for mine) - but the outbound mail I only see dkim (pass) but no spf check at all when message arrives from archlinux. Do you see any SPF in Authentication-Results headers or nothing? I do indeed see lists.archlinux.org has an SPF record and the message does arrive with same IP as spf designated sender - I too am a bit perplexed why no SPF check happens - here anyway. dmarc doesn't fail since dkim passes and spf is silent it seems. I may be slow today but why is there no SPF validation?