Hello again, I noticed mails from the Dovecot list break DKIM signatures.
Perhaps it's something to look at? Most lists I'm on manage to pass messages with DKIM intact. Authentication-Results: abc.abc.abc; dkim=fail (rsa verify failed) header.d=mrstuudio.ee header.s=mr header.b=M03Fp5lE; dmarc=pass (policy=none) header.from=dovecot.org; spf=pass Thanks, Reio