On 2024-07-04 at 12:59, Thomas Hochstein wrote: > Hans wrote: > >> Now I got my last mail back with the spam tag! > > That's very surprising. > >> X-Spam-Flag: YES >> X-SPAM-FACTOR: DKIM >> Authentication-Results: mail39c50.megamailservers.eu; >> dkim=fail reason="signature verification failed" (1024-bit key) >> header.d=megamailservers.eu header.i=@megamailservers.eu header.b="QLjumGn/" > > I have absolutely no idea where that spam flag may be coming from. > It's a mystery.
Perhaps even more interestingly, I see the following, in the ARC-Authentication-Results header in three mails from Hans in this thread. (This is not the same as the Authentication-Results header, such as you quoted, of which there appear to be four in each mail.) The one which was sent as a reply to my mail has: >> dkim=pass (1024-bit rsa key sha256) header.d=megamailservers.eu >> header.i=@megamailservers.eu header.b=QOWbQzHX header.a=rsa-sha256 >> header.s=maildub The one with the [SOLVED] tag, which was a reply to the previous, has: >> dkim=fail (message has been altered, 1024-bit rsa key sha256) >> header.d=megamailservers.eu header.i=@megamailservers.eu >> header.b=QLjumGn/ header.a=rsa-sha256 header.s=maildub The one you were replying to has: >> dkim=fail (message has been altered, 1024-bit rsa key sha256) >> header.d=megamailservers.eu header.i=@megamailservers.eu >> header.b=r8P8m4Og header.a=rsa-sha256 header.s=maildub Perhaps interestingly (or perhaps not), that last one appears to be multipart MIME (one part with HTML and one part plain-text), whereas the other two appear to be plain-text-only. (I am not entirely certain which mail is the one from which Hans quoted a set of headers. Those headers include a Subject: line with the [SOLVED] tag, of which I've received only one message thus far via the list in this thread; however, the headers in that mail as I received it do not appear to *remotely* match the ones Hans quoted, enough so that I am not confident of them being the same message. If they are, then that might narrow down the places where the failure could be being introduced.) So we have three at least visible scenarios in just this thread: plain text with DKIM pass, plain text with DKIM fail, and multipart MIME with DKIM fail. Hans, are you certain you composed those three messages the same way, using the same interface of the same program, and sent them the same way? -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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